MLPAO EXAM SET OVER 1000 UPDATED QUESTIONS AND ANSWERS COMPLETE VERIFIED SOLUTION100%

MLPAO EXAM SET OVER 1000 UPDATED QUESTIONS AND ANSWERS COMPLETE VERIFIED SOLUTION100% "Which factor may cause a blood smear to be too thin? - the angle of the spreader is too high - the edge of the spreader is cracked - the smear is spread too slowly - the angle of the spreader is too low - a dirty spreader is used - CORRECT ANSWER the angle of the spreader is too high" "Whole blood is obtained: - by using a tube containing an anticoagulant - by centrifuging a clotted specimen - by using a red stoppered tube - by using a tube that doesn't contain an anticoagulant - CORRECT ANSWER by using a tube containing an anticoagulant" "How will drawing a small amount of blood in the EDTA tube affect the spun hematocrit value? - No affect - Blood will hemolyze and give an inaccurate result - Falsely increased value - Falsely decreased value - Clots will form and a hematocrit cannot be done - CORRECT ANSWER Falsely decreased value" "If you have Rh-positive blood, it means: - you can not receive transfusions at all - you should only receive transfusions of Rh-positive blood - you should only receive transfusions of Rh-negative blood - you can receive transfusions of both Rh-positive and Rh-negative blood - CORRECT ANSWER - you can receive transfusions of both Rh-positive and Rh-negative blood" "What is the most common cause of left axis deviation? - Atrial septal defects - Left ventricular hypertrophy - Right ventricular hypertrophy - Defects of the conduction system - CORRECT ANSWER Defects of the conduction system" "What does ST-elevation suggest? - Bundle branch block - The leads are on the wrong way around - Heart murmur - Myocardial infarction - CORRECT ANSWER Myocardial infarction" "A factor that affects the erythrocyte sedimentation rate (ESR) is: - red cell count - red cell size - plasma factors - technical and mechanical factors - All of the above - CORRECT ANSWER All of the above" "Which of the following is NOT tested in clinical hematology? - Red blood cells - White blood cells - Platelets - Solutes in plasma - CORRECT ANSWER solutes in plasma" "Paraffin sections: - must be dewaxed prior to staining - have xylene removed by Scott's water - will have blotchy staining if they are not left in dewaxing sylenes for minimum 1 hour - do not require cover slipping - CORRECT ANSWER must be dewaxed prior to staining" "The fixative in containers should be: - added after tissue is added - only added to tissue if it cannot be delivered to the lab immediately - 5-10 times the size of the tissue - added prior to adding tissue - CORRECT ANSWER added prior to adding tissue" "The chemical involved for fixation is: - neutral buffered formalin - xylene - paraplast - increasing strengths of alcohol - CORRECT ANSWER neutral buffered formalin" "The chemical involved in dehydration is: - neutral buffered formalin - xylene - paraplast - increasing strengths of alcohol - CORRECT ANSWER increasing strengths of alcohol" "The chemical involved in clearing is: - neutral buffered formalin - xylene - paraplast - increasing strengths of alcohol - CORRECT ANSWER xylene" "The chemical involved in infiltration is: - neutral buffered formalin - xylene - paraplast - increasing strengths of alcohol - CORRECT ANSWER paraplast" "The Papanicaloau method can be used to stain: - direct smears - paraffin sections of sputa for cancer study - millipore filter concentrates - smears made from centrifuged sediment - all of the above - CORRECT ANSWER all of the above" "What is the SI unit for volume? - meters squared - meters cubed - liters squared - liters cubed - CORRECT ANSWER meters cubed" "The definition of a molar solution is: - Weight (mass) of a compound in grams in a volume of 1 mL - Weight (mass) of a compound in grams in a volume of 1 liter - Weight (mass) of a compound in milligrams in a volume of 1 mL - Weight (mass) of a compound in milligrams in a volume of 1 liter - CORRECT ANSWER Weight (mass) of a compound in grams in a volume of 1 liter" "In order to prepare 500 mL of buffer, the lab manual states 2 parts of concentrated buffer is mixed with 6 parts of distilled water. what quantities of buffer and h2O would be used? - 375 mL of buffer and 125 mL of water - 125 mL of buffer and 375 mL of water - 500 mL of buffer and 1500 mL of water - 1500 mL of buffer and 500 mL of water - CORRECT ANSWER 125 mL of buffer and 375 mL of water" "The degree that a control result deviates from known values or the mean value is known as the: - standard deviation - coefficient deviation - median - mean - CORRECT ANSWER standard deviation" "Which formula is used to calculate the coefficient of variation? - Standard Deviation x 100 / Standard Error - Mean x 100 / Standard Deviation - Standard Deviation x 100 / Mean - Variance x 100 / Mean - CORRECT ANSWER Standard Deviation x 100 / Mean" "Most fixatives act by: - precipitating calcium ions in cells - precipitating cell wall - precipitating carbohydrates in cells - precipitating enzymes in the cells - none of the above - CORRECT ANSWER precipitating cell wall" "A Westergren tube is used for which test procedure? - prothrombin time - hematocrit - platelet count - erythrocyte sedimentation rate - reticulocyte count - CORRECT ANSWER Erythrocyte Count" "Which of the following is the best examples of homeostasis? - sexual reproduction - growth - regulation of body temperature - growth of hair under arms - storage of fat as adipose - CORRECT ANSWER Regulation of body temperature" "A Gaspack/candle jar can be used to produce: - an aerobic environment - an anaerobic environment - more vacuum - a vacuum - two of the above - CORRECT ANSWER An Anaerobic Environment" "Exchange of Oxygen and nutrients take place via: - lymphatic vessels - arteries - arterioles - capillaries - venules - CORRECT ANSWER Capillaries" "The range of pH is: - 1-14 - 1-7 - 1-12 - 0-12 - 0-14 - CORRECT ANSWER 0-14" "A pH of 2 is _________ a pH of 5 - 1000 times less acidic than - 100 time more acidic than - 2 times less acidic than - 20 time less acidic than - 1000 times more acidic than - CORRECT ANSWER 1000 Times more acidic than" "A blood glucose is preferred to be done on: - a whole blood using sodium citrate - clotted blood - whole blood using oxalate and sodium fluoride as an anticoagulant - a finger prick specimen - urine - CORRECT ANSWER Whole blood using oxalate and sodium fluoride as an anticoagulant" "What is the name give to a substance that kills disease causing microorganisms but not spores and is used on inanimate object? - disinfectant - antiseptic - antibiotic - fungicide - CORRECT ANSWER Disinfectant" "Tissues are generally embedded in paraffin wax so that they may be: - decalcified - cut into sections - dehydrated - fixed - stained - CORRECT ANSWER Cut into Sections" "A patient asks you to tell him his test results.. You should, - ask him to check with his physician - tell him the results are not ready - tell him his results - refuse to discuss the subject - only tell him if results are normal - CORRECT ANSWER Ask him to check with his physician." "A plasma protein involved in clotting is: - immunoglobulin - gamma globulin - albumin - fibrinogen - unable to determine with information given - CORRECT ANSWER Fibrinogen" "What tube would be drawn if a physician requested a heterophile antibody screen? - green -grey - lavender - SST - light blue - CORRECT ANSWER SST" "Which statement is false regarding setting up an ESR test? - it must be read in 1 hour - it can be located near a centrifuge - it should be filled to exactly the zero mark - it should be performed on fresh blood - it must be set up vertically - CORRECT ANSWER It can be located near a centrifuge" "What is the purpose of a white blood cell differential? - to determine proportion of red cells to white cells in whole blood - to determine white cell count in whole blood - to determine proportion of different white cells in whole blood - to diagnose anemia - CORRECT ANSWER To determine proportion of different white cells in whole blood" "A dark yellow or amber colored serum is called: - created - lipemic - icteric - jaundiced - hemolyzed - CORRECT ANSWER Icteric" "100 mL of 20% hydrochloric acid will make what volume of 4% hydrochloric acid? - 500 ml - 50 ml - 1000 mL - 100 mL - 80 mL - CORRECT ANSWER 500 mL" "Anticoagulant therapy is monitored by performing a(n): - ESR (Erythrocyte sedimentation rate) - CBC (Complete blood count) - PT (prothrombin time) - FBS (fasting blood sugar) - Hgb (Hemoglobin) - CORRECT ANSWER PT (prothrombin time)" "The layer above a sediment in a solution is the: - supernatant - solution - suspension - buffy coat - CORRECT ANSWER Supernatant" "Beta hemolysis causes: - a green discoloration around colonies on blood agar(alpha) - a completely clear zone around colonies on blood agar - the death of bacteria - normal autolysis of blood cells - none of the above (gamma = no changes in agar) - CORRECT ANSWER A completely clear zone around colonies on blood agar" "Stool concentration method concentrates which of the following: - parasites - ova - white blood cell - red blood cells - all of the above - a and be are correct - CORRECT ANSWER a and b are correct" "To properly autoclave a small load of waster or equipment, the autoclave should be set at: - 121°C for 50 minutes at 15 p.s.i. - 130°C for 30 minutes at 30 p.s.i. - 121°C for 15 minutes at 15 p.s.i. - 121°C for 30 minutes at 15 p.s.i - 121°C for 20 minutes at 20 p.s.i. - CORRECT ANSWER 121°C for 15 minutes at 15 p.s.i." "Which of the following acids is not to be used for decalcifiation? - formic acid - nitric acid - hydrobromic acid - all of the above can be used - none of the above can be used - CORRECT ANSWER Hydrobromic acid" "Tissues are fixed to: - prevent changes in cellular morphology - facilitate staining - allow tissues to be examined in a life-like condition - all of the above - CORRECT ANSWER All of the above" "A solution that has a solute concentration equal to that in a cell is described as: - hypertonic - hypotonic - hydrostatic - osmotic - isotonic - CORRECT ANSWER Isotonic" "Which of the following in urinalysis may indicate a urinary tract infection? - presence of WBC - presence of pH - presence of Nitrite - both a and c - all of the above - CORRECT ANSWER Both a and c" "WHMIS stands for: - Workplace Harmful Materials and Industrial Safety - Workplace Hazardous Materials Information System - Workplace Hazardous Material and Information System - Workplace Hazardous Management of Industrial Systems - CORRECT ANSWER Workplace Hazardous Materials Information System" "Media refers to: - away from the center of the body - toward the center of the body - toward the head - toward the feet - none of the above - CORRECT ANSWER Towards the center of the body" "In blood culture collection, these procedures are followed except: - the specimen is kept at room temperature, not refrigerated - an arterial sample is drawn - an anaerobic and aerobic bottle are drawn if possible - the blood culture is always drawn first - tincture of iodine or proviodine are used an antiseptic - CORRECT ANSWER An arterial sample is drawn" "If the name of a bacterium ends in coccus, then its shape is: - rod-shaped - spiral - spherical - short and slender - short rod, slightly rounded - CORRECT ANSWER Spherical" "Rouleaux is: - a thrombus formation - clotting of blood - lysis of red blood cells - stacked coin appearance of red blood cells in a smear - CORRECT ANSWER Stacked coin appearance of red blood cells in a smear" "Which of the following is the active ingredient in Drabkin's reagent? - cyanide - ferrous oxide - cresyl blue - cyanmethemoglobin - none of the above - CORRECT ANSWER Cyanide" "Which of the following will interfering in routine analysis? - Riboflavin (B2) - ascorbic acid (vitamin C) - porphyrins - vitamin b12 - all of the above - CORRECT ANSWER All of the above" "The most abundant immunoglobulin in the body is: - IgA - IgD - IgE - IgG - IgM - CORRECT ANSWER IgG" "The anticoagulant used for a CBC is: - EDTA - oxalate - citrate - heparin - CORRECT ANSWER EDTA (Ethylene diamine tetra acetic acid)" "Which of the following would normally be found in plasma? - cholesterol - calcium - glucose - fibrinogen - all of the above - CORRECT ANSWER All of the above" "If a urine specimen is allowed to sit at room temperature for more than one hour, what changes may take place? - it will become cloudy - any glucose levels will fall - any red or white blood cells will lyse - all of the above - CORRECT ANSWER All of the above" "Which of the following tubes would be used for a cholesterol level determination? - heparin - EDTA - SST - citrate - oxalate - CORRECT ANSWER SST" "The term for the presence of bacteria in the blood is: - meningitis - septicemia - anemia - bacteremia - CORRECT ANSWER Bacteremia" "In urinalysis, a confirmatory test for urine protein would be: - acetest (ketones) - clinitest (glucose-sugar) - hematest (fecal occult blood) - SSA test - Ictotest (bilirubin) - unneccessary - CORRECT ANSWER SSA test (for proteins)" "NaCl is added to distilled water in a container. What term would you use to identify the distilled water? - solvent - solute - reagent - solution - mixture - CORRECT ANSWER Solvent" "The shape of a normal erythrocyte is called: - a biconcave disk - spherical - columnar - muffin shaped - none of the above - CORRECT ANSWER A biconcave disk" "If blood is collected in a green top tube, when centrifuged it will separate into: - serum and clot - plasma and clot - serum, buffy coat, and clot - plasma, buffy coat, and red blood cells - plasma, buffy coat and clot - CORRECT ANSWER Plasma, buffy coat, and red blood cells" "The purpose of heat fixing a bacterial smear is to: - cause the cells to absorb stain more readily - prevent cells from washing off the slide - provide a warm temperature for cells to grow - make cells visible under the microscope - all of the above - a, b, and d are correct - CORRECT ANSWER a, b, and d are correct" "ADH (antidiuretic hormone/vasopressin) stimulates reabsorption of: - sodium ions - hydrogen ions - water - chloride ions - potassium ions - CORRECT ANSWER Water" "Decalcification takes place: - before fixation - after fixation - after embedding - to sections prior to staining - CORRECT ANSWER After fixation" "Insulin is: - a glucose regulating hormone - produced in the pancreas - produced in the islets of Langerhans - all of the above - both a and c - CORRECT ANSWER All of the above" "They hydrogen ion potential is also known as: - S.G. - pH - p.s.i. - S.I. - CORRECT ANSWER pH" "Which of the following is used to embed tissues sample after processing? - permount - paraffin - xylene - EDTA - dry ice - CORRECT ANSWER Paraffin" "Hypersecretion of insulin would result in: - diabetes mellitus - diabetes insipidus - hyperglycemia - hypoglycemia - glucosuria - CORRECT ANSWER Hypoglycemia" "A quantitative test: - is not covered by OHIP - is the same as screening test - does not give a specific value in the result - gives a specific value in the result - does not require reference range - CORRECT ANSWER gives a specific value in the result" "Isotopes has: - have the same atomic number and same atomic mass - have same atomic number and different atomic mass - have different atomic number and same atomic mass - have different atomic number and different atomic mass - CORRECT ANSWER Have same atomic number and different atomic mass" "Pyruvic acid is broken down into carbon dioxide, water, and 36 ATP in: - glycolysis - the citric acid cycle/krebs cycle - glycogenesis - the pyruvic acid cycle - brain cell only - CORRECT ANSWER The citric acid cycle/krebs cycle" "What statement is true about neurons? - they have positive charge - they orbit around the atomic nucleus - they are the basic functional unit of the nervous system - they have a negative charge - CORRECT ANSWER They are the basic functional unit of the nervous system" "Steroids are: - carbohydrates - proteins - enzymes - lipids - minerals - CORRECT ANSWER Lipids" "The name of a disease is the: - prognosis - signs - symptoms - diagnosis - etiology - CORRECT ANSWER Diagnosis" "Which is not a "controlled products" under WHMIS regulations? - oxidizing materials - compressed gases - radioactive materials - poisonous materials - CORRECT ANSWER Radioactive materials" "Which government regulation control "Specimen Collection Act"? - regulation 862 - regulation 682 - regulation 860 - regulation 628 - CORRECT ANSWER Regulation 682" "Identify the TRUE statement. - MLA's are regulated under regulation 682 - MLA's are regulated under 862 - MLA's are regulated if they work under a technologist - MLA's are not regulated under regulation 682 - CORRECT ANSWER MLA's are not regulated under regulation 682" "A normal standard on an ECG tracing should be: - 5 mm high - 10 mm high - 20 mm high - 2 mv - CORRECT ANSWER 10 mm high" "The carotid arteries carry blood to the: - lungs - myocardium - brain - liver - CORRECT ANSWER Brain" "Why is an infant's head circumference measured? - to use the information to calculate height - to use the information to calculate the weight - to get information about brain development - to get information about body development - CORRECT ANSWER To get information about brain development" "If a patient has an IV in the right arm and hematoma on the left arm, the blood can be taken from? - right arm - left arm - back of right hand - if the right hand is not available, go under the IV location (canula) 2 inches - neck veins - c and d are correct - CORRECT ANSWER c and d correct" "What test is mostly affected by hemolysis? - Na - Cl - K - Fe - CORRECT ANSWER K- potassium" "CSF sample can be divided into how many tubes: - 4 - 3 - 2 - 1 - all of the above - a and b are correct - CORRECT ANSWER a and b are correct" "Alcohol blood test for driver under police request is considered: - hazardous materials - toxic sample - TDG Act 1992 - Chain of Custody - CORRECT ANSWER Chain of custody" "TDG Act 1992, discuss how many classes? - 5 classes - 7 classes - 9 classes - 3 classes - CORRECT ANSWER 9 classes" "RHPA will not allow an individual to use the title "Doctor/Dr." unless person is: - belongs to a college - certified by CPSO - can perform few controlled acts - all of the above - CORRECT ANSWER All of the above" "If you think you have mixed two specimens, you should: - ask the patient which one is his/her - ask the nurse to identify the specimen - work on both specimen - retake both - CORRECT ANSWER Retake both" "Best time to collect the O & P specimen is: - at night - in the morning - in the morning before the bowel movement - during the day - CORRECT ANSWER In the morning" "The nanometer is the unit of measure: - specific gravity - density - length - light - CORRECT ANSWER Length" "Activated charcoal present in the transport media will: - indicate a contaminated specimen - prevent over growth - maintain anaerobic condition - absorb toxic substance (absorb the toxins) - CORRECT ANSWER Absorb toxic substance (absorb the toxins)" "glycosylated hemoglobin (HbA1C) is performed on: - serum - plasma - whole blood - urine - CORRECT ANSWER Whole blood" "The Landersteiner rule is: - states that antiserum is the solution of antigens - sets the proper collection of samples for cross match - deals with the presence of anti-A when corresponding antigens are lacking - states that group O is the universal donor - CORRECT ANSWER Sets the proper collection of samples for cross-match" "The solution used to dilute blood for WBC count using Hemocytometer is: - normal saline - acetic acid - distilled water - new methylene blue - CORRECT ANSWER Acetic acid" "The presence of bile pigment in the urine causes the specimen to be: - light amber in color - foul-smelling - brown - green - CORRECT ANSWER Light amber in color - jaundice" "Blood is present in the urine due to: - trauma - infection of glomerulus - menstruation - all of the above - CORRECT ANSWER All of the above" "The professional that can order blood test include: - a medical doctor, nurse - a lab technician - homeopathic doctor - a PhD doctor - CORRECT ANSWER a Medical doctor, nurse" "Glassware used to measure 24 hour urine volumes is a: - volumetric flask - beaker - erlenmeyer flask - graduated cylinder - safety bulb - CORRECT ANSWER Graduated Cylinder" "Glassware used to make 100 ml of a 12% solution is a: - volumetric flask - beaker - erlenmeyer flask - graduated cylinder - safety bulb - CORRECT ANSWER Volumetric Flask" "A suction device used to draw up liquids is a: - volumetric flask - beaker - erlermeyer flask - graduated cylinder - safety bulb - CORRECT ANSWER Safety Bulb" "Which piece of glassware would not give critical measurements? - volumetric flask - beaker - micropipette - serological pipette - mohr pipette - CORRECT ANSWER Beaker" "The durable material used to make heat resistant glass ware is? - polyethylene - soda lime - polystyrene - borosilicate - polyvinyl chloride - CORRECT ANSWER Borosilicate" "Solid crystal of potassium oxalate are added to distilled water in a container. What term would describe the potassium oxalate? - solution - solvent - solute - reagent - a and c are correct - CORRECT ANSWER Solute" "The destruction of all microorganisms including all spores is called: - sanitation - antisepsis - sterilization - disinfection - asepsis - CORRECT ANSWER Sterilization" "A ug is a unit to describe: - time - volume - distance - weight - length - CORRECT ANSWER Weight" "Cells in a hypertonic solution will: - swell and burst - dehydrate - hemolyze - not be affected - stop mitosis - CORRECT ANSWER Dehydrate" "The solution used to fix pap smears is: - wright's stain - hematoxylin - physiological saline - cytospray - methylene blue - CORRECT ANSWER Cytospray" "Blood for an RBC count must be prepared from: - EDTA blood - Citrated blood - Heparinized blood - Oxalated blood - Clotted blood - CORRECT ANSWER EDTA blood" "Which reagent is not routinely used to preserve tissue in a life-like manner? - formic acid - zenker's fluid - 40% formaldehyde dissolved in water - bouin's fluid - 10% formalin - CORRECT ANSWER Formic Acid" "Which piece of histology equipment is not temperature dependent? - wax bath - tissue processor - microtome - embedding center - waterbath - CORRECT ANSWER Microtome" "A biopsy is: - removal of a biological fluid - removal of an organ - a post mortem examination - excision of a representative tissue sample - a collection of blood - CORRECT ANSWER Excision of a representative tissue sample" "Fixation is important in tissue processing because it: - prevents cells morphology - allows tissue to be examined in a life-like condition - facilitates the staining process - All of the above - a and c is correct - CORRECT ANSWER All of the above" "The liquid portion of blood remaining after a clot has formed is called: - the buffy coat - serum - plasma - lymph - tissue fluid - CORRECT ANSWER Serum" "Which test could not be performed on a serum sample? - IRON - vitamin b12 - total lipids - clotting factors - potassium - CORRECT ANSWER Clotting factors" "The shape of a normal erythrocyte is described as a: - biconcave disk - spherocyte - polymorphonucleocyte - thin column - bull's eye - CORRECT ANSWER Biconcave disk" "Glucose results are currently reported in: - g/mol - mmol/L - g/L - g/ml - g/dL - CORRECT ANSWER mmol/L" "If a patient refuses to have a veniouncture done you should: - tear up the requisition - collect a urine specimen - politely ask the patient to come back next week - restrain the patient and proceed with the venipuncture - notify the patient's physician - CORRECT ANSWER Notify the patient's physician" "Which statement is false when performing a venipuncture? - the vein is entered at a 15-20 degree angle - the tubes are pushed onto the needle with the thumb of the strongest hand - the bevel of the needle is pointed up when entering the vein - the tourniquet is removed before withdrawing the needle - the patient's arm is cleansed before palpating the vein - CORRECT ANSWER The patient's arm is cleansed before palpating the vein" "A biohazardous container is used to discard: - Lancets - needles - band aid wrappers - all of the above - a and b are correct - CORRECT ANSWER a and b are correct" "Which needle gauge corresponds with the smallest needle size? - 18 gauge - 20 gauge - 21 gauge - 22 gauge - 23 gauge - CORRECT ANSWER 23 gauge" "The vacutainer tube which is used to collect and separate serum is the: - red - green - lavender - light blue - SST - CORRECT ANSWER SST" "If a lavender top, plain red top, grey top and light blue top tubes are collected, what is the order of draw? - they can be collected in any order - plain red top, lavender, light blue, grey - light blue, plain red top, lavender, grey top - grey, light blue, lavender, plain red top - plain red, light blue, lavender, grey - CORRECT ANSWER light blue, plain red top, lavender, grey top" "If the patient faints during a venipuncture, you should: - call the physician at once - remove the needle and attend to the patient - yell loudly at the patient to keep him conscious - continue the procedure until all blood is collected - start artificial respiration immediately - CORRECT ANSWER Remove the needle and attend to the patient" "What vein/s is not used to obtain a venous blood specimen? - basilic vein - cephalic vein - median cubital vein - femoral vein - veins on the back of the hand - CORRECT ANSWER Femoral vein" "A blood specimen collected in a heparinized tube is centrifuged. It will separate into: - serum and clot - plasma and clot - serum and plasma - plasma, buffy coat, RBC - CORRECT ANSWER Plasma, buffy coat, RBC" "Hemolysis may result from: - using a gauge needle on an adult - vigorously shaking the blood specimen - refrigerating the vacutainer before use - leaving the tourniquet on for three minutes - all of the above - CORRECT ANSWER All of the above" "The test procedure that uses a Westergren tube is the: - erythrocyte sedimentation rate - hematocrit - reticulocyte count - microhematocrit - differential - CORRECT ANSWER Erythrocyte Sedimentation Rate" "Latex gloves protect the lab employee from: - accidental needle punctures - microtome injury - patient aerosols - body fluids - all of the above - CORRECT ANSWER Body fluids" "What is the normal temperature of a laboratory refrigerator ?(degree C) - -4 - 0 - 3 - 20 - 37 - CORRECT ANSWER 3" "The purpose of doing a differential is to: - determine the proportion of RBC's in the whole blood - count the number of WBC's in the whole blood - determine the proportion of WBC's in the whole blood - diagnose anemia - a and b are correct - c and d are correct - CORRECT ANSWER - c and d are correct" "Blood samples for cell counts must be thoroughly mixed immediately before testing to: - prevent the clumping of platelets - prevent the formation of small clots - oxygenate the sample - ensure even distribution of all blood components - mix anticoagulant with the blood - CORRECT ANSWER ensure even distribution of all blood components" "An automated hematology cell counter uses the principle of? - diffusion - color absorption changes - high frequency sound waves - changes in cell electrical currents - light wave scattering - CORRECT ANSWER Color Absorption changes" "The maximum depth to perform a heel puncture on a newborn is: - 1.5mm - 1.8mm - 2.4mm - 2.8mm - 3.0mm - CORRECT ANSWER 2.4mm" "What areas on an infant are suitable for skin puncture? - any calloused area of the foot - the second or third on either hand - the posterior curvature of the heel - any precious puncture site that is edematous (swelled up) - the lateral, flat portion of the heel - CORRECT ANSWER The lateral, flat portion of the heel" "What laboratory department studies antigen-antibody reactions? - hematology - microbiology - immunology - chemistry - coagulation - CORRECT ANSWER Immunology" "What tube would be drawn for ANA (Antinuclear Antibody)? - red - grey - SST - green - light blue - CORRECT ANSWER SST" "A disinfectant used on metal surfaces is: - 10% formalin - 2% glutaraldehyde - 1% hypochlorite - 70% isopropyl alcohol - 15% iodine - CORRECT ANSWER 2% Glutaraldehyde" "Separated serum that is dark yellow to amber in colour is termed: - crenated - lipemic - jaundiced - icteric - hemolyzed - CORRECT ANSWER Icteric" "Which factor would interfere with the growth of a pathogen? - appropriate nutrients - darkness - a moist environment - an acidic pH - a temperature of 37 degree C - CORRECT ANSWER An acidic pH" "A specimen is: - material spread on a slide - an amount of blood or urine - a small sample taken to represent the whole organism or system - a colony of microorganisms growing on solid medium - a technique used to microscopically examine urine - CORRECT ANSWER A small sample taken to represent the whole organism or system" "The purpose of heat fixing a bacterial smear is to: - prevent cells from being washed off during staining - cause the cells to absorb the stain more easily - provide a temperature for the bacteria to grow - make the cells visible under the microscope - destroy the bacteria cell wall - CORRECT ANSWER prevent cells from being washed off during staining" "The site of the specimen must be written on a swab container: - to warn lab staff about a possible pathogen - only if time permits - it is always on the requisition - to determine: selection of suitable agar & atmospheric requirements - to determine the OHIP fee - All of the above - CORRECT ANSWER To determine: selection of suitable agar & atmospheric requirements" "Identify the correct sequence of steps in the Gram stain procedure? - primary stain, secondary stain, mordant, decolourising - mordant, primary stain, decolourising, counterstain - counterstain, mordant, primary stain, decolourising - primary stain, mordant, decolourising, counterstain - none of the above is correct - CORRECT ANSWER primary stain, mordant, decolourising, counterstain" "Which Gram stain reagent acts as a mordant to bind the stain to the bacteria? - lugol's iodine - safranin - acetone-alcohol - gram's iodine - crystal violet - CORRECT ANSWER Gram's iodine" "How should commercially prepared culture plates be stored? - in the freezer until several hours before use - inverted to prevent condensation dripping onto the media - at room temperature in a dark area of the lab - at a temperature of 2°C-8°C - none of the above - b and d are correct - CORRECT ANSWER b and d are correct" "Identify the false statement regarding blood culture collection - the site is cleansed with betadine and alcohol - an arterial sample is collected - an aerobic specimen is required - blood culture tubes are always drawn first - the specimen are never refrigerated - CORRECT ANSWER An arterial sample is collected" "Susceptibility testing: - measures how fast a microorganism can be destroyed - identifies the types of microorganisms in the specimen - determines growth requirements of organisms - produces a pure culture - identifies the appropriate antibiotic needed to kill the microorganism - CORRECT ANSWER Identifies the appropriate antibiotic needed to kill the microorganism" "Identify the false statement when a specimen is cultured: - the equipment required is a loop and a direct flame - the media is brought to room temperature before use - the media selected is dependent on the type of specimen - the loop is sterilized prior to inoculation - the petri lid is placed upright to the bench to prevent contamination - CORRECT ANSWER the petri lid is placed upright to the bench to prevent contamination" "Which statement is false when a Gram stain is performed? - distilled water is used for the washing steps - acetone-alcohol decolourizes gram-negative bacteria - safranin stains the gram-negative bacteria red - gram's iodine is used to bind the primary stain - crystal violet stains the gram-positive bacteria purple - CORRECT ANSWER distilled water is used for the washing steps" "Which is most commonly used for protection when processing swabs, body fluids or blood? - fume hood - class I laminar flow hood - class II laminar flow hood - class III laminar flow hood - glove box - CORRECT ANSWER class II laminar flow hood" "You are collecting a blood glucose level. The patient asks if you think he has diabetes. You would tell him: - this is a possibility, but you are not positive - you are unable to give him any information - to discuss this with the doctor as he can answer this question better - you have been instructed not to give out any information; therefore you can't discuss it - to read a prepared pamphlet and make his own decision - CORRECT ANSWER to discuss this with the doctor as he can answer this question better" "The universallly accepted disinfectant for the medical workplace is: - 2% glutaraldehyde - 1% hypochlorite - 10% formalin - 70% isopropyl alcohol - 5% iodine - CORRECT ANSWER 1% hypochlorite" "A patient's Health Card number consists of _____ digits - 4 - 6 - 8 - 10 - 12 - CORRECT ANSWER 10" "A 1/6 dilution of serum in water was made. The glucose result was 4.0 mmol/L. What is the reported result? - 0.66 mmol/L - 4.0 mmol/L - 24.0 mmol/L - 40.0 mmol/L - 60.0 mmol/L - CORRECT ANSWER 24.0 mmol/L" "100ml of 20% hydrochloride acid will make how many ml of 4% hydrochloric acid? - 59 ml - 80 ml - 100 ml - 500 ml - 1000 ml - CORRECT ANSWER 500 ml" "How many grams of NaCl are needed to make 300 ml of a 2% solution: - 2 grams - 4 grams - 6 grams - 20 grams - unable to determine with this information - CORRECT ANSWER 6 grams" "Approximately how many centimetres are in one foot? - 3 - 12 - 24 - 30 - 100 - CORRECT ANSWER 30" "Two standard deviations from the mean includes: - 5% of all values - 34% of all values - 50% of all values - 68% of all values - 95% of all values - CORRECT ANSWER 95% of all values" "When performing a venipuncture, bright red blood spurts into the tube. This indicates: - an arterial puncture - low haemoglobin - high hematocrit - high blood pressure - high blood pH - CORRECT ANSWER An arterial puncture" "A patient has hepatitis. Which test(s) will be increased? - ALT - AST - Alkaline phosphatase - bilirubin - all of of the above - c and d are correct - CORRECT ANSWER All of the above" "Acid phosphatise is an enzyme which increase in: - gout - kidney disease - liver disease - protastic cancer - heart disease - CORRECT ANSWER Protastic cancer" "Which enzyme(s) would be increased in a patient with acute MI? - ACP (autologous conditioned plasma) - CK (creatine kinase) - AST (aspartate aminotransferase) - All of the above - b and c are correct - CORRECT ANSWER b and c are correct" "A 2 hour p.c. glucose: - is collected 2 hours after eating a meal high in carbohydrates - is a valuable screening test for Diabetes mellitus - measures glucose when it is at its highest level after a meal - is not affected by medication - all of the above - a and b are correct - CORRECT ANSWER a and b are correct" "A routine GTT (glucose tolerance test) - is three hours long - requires five blood samples - includes 6 urine samples - uses 100 grams of glucose in a 300 ml solution - uses 50 grams of glucose in a 500 ml solution - CORRECT ANSWER requires five blood samples" "Glycosylated haemoglobin: - cause sickle cell anemia - is affected by the patient's food intake on the day of testing - is drawn on a green top tube - indicates blood glucose levels from preceding months - requires an SST tube - CORRECT ANSWER indicates blood glucose levels from preceding months" "Serum is acidified after separation for which test? - uric acid - Frederickson typing - acid phosphatase - BUN (blood urea nitrogen) - Creatine - CORRECT ANSWER Acid phosphatase" "MSDS sheets do not contain: - Product Identifier and Use - Hazardous Ingredients - First Aid Measures - Preventative Measures - Hazard Symbols - CORRECT ANSWER Hazard Symbols" "When using acid and water: - acid is slowly added to water - water is slowly added to acid - water and acid are added together - it makes no difference how they are added - they are never mixed, as heat is produced - CORRECT ANSWER Acid is slowly added to water" "Insidous Hazards: - include substances which react violently with each other - include aerosols, carcinogens, mutagens and radiation - are substances which injure by direct chemical action - are graded using TLV and TLV -S.T.E.L. values - are always chemical in nature - CORRECT ANSWER include aerosols, carcinogens, mutagens and radiation" "Which test would not be performed on plasma or serum? - lipoprotein electrophoresis - iron - BUN - hemoglobin electrophoresis - electrolyte profile - CORRECT ANSWER hemoglobin electrophoresis" "The functional unit of the Kidney is the: - renal cell - renal cortex - renal tubule - bladder - nephron - CORRECT ANSWER Nephron" "Pus cells or fat in urine would cause this color: - red - yellow-brown - greenish blue - milky white - black - CORRECT ANSWER Milky white" "The end products of protein digestion are: - glycerol - fatty acids - triglycerides - monosaccharide - amino acids - CORRECT ANSWER Amino acids" "Which statement is true regarding the use of reagent dipsticks? - heat and moisture do no affect the reagent reactivity - timing of each reagent are is not necessary - reagent sticks are held vertically when reading - all reagent sticks test for specific gravity - reagent sticks should be tested daily with controls - CORRECT ANSWER reagent sticks should be tested daily with controls" "A 1/8 dilution of urine is: - one part water and 8 parts urine - one part urine and 8 parts water - one part urine and 7 parts water - one part water and 7 pats urine - one part water and 9 parts urine - CORRECT ANSWER One part urine and 7 parts water" "Before performing an R & M (Routine and Microscopic Analysis) on a specimen, the urine is: - filtered - brought to room temperature - centrifuged - well-mixed - b and d are correct - CORRECT ANSWER b and d are correct" "A back-up test/s to confirm a positive protein in urine would be: - ictotest - SSA test - Clinitest - TCA test - b and d are correct - CORRECT ANSWER b and d are correct" "Which test result would increase in a urine specimen sitting at room temperature for three hours? - bilirubin - nitrite - leukocyte - urobilinogen - ketones - CORRECT ANSWER Nitrite" "What does STAT mean? - as soon as possible - somatic tremor appears in tracing - immediately - some type of artefact throughout - severe trauma and tachycardia - CORRECT ANSWER Immediately" "A panic or critical value indicates a test result that is: - incorrect and must be repeated - higher than normal and must be documented - abnormal and must be reported to a physician or registered nurse - lower than expected for that patient - performed on a STAT test - CORRECT ANSWER Abnormal and must be reported to a physician or registered nurse" "Water free of charged particles is: - distilled - radioactive - chlorinated - deionized - heavy - CORRECT ANSWER Deionized" "Identify the correct step when using a serological pipette: - the pipette tip is below the liquid surface when filling - releasing the safety bulb will draw liquid into the pipette - it delivers total capacity or multiple volumes - it is held vertically and allowed to drain freely - the last portion of the pipette contents is discarded in a separate container - CORRECT ANSWER The last portion of the pipette contents is discarded in a separate container" "A "TC" pipette is: - allowed to drain freely - marked with a double ring at the mouthpiece - used for toxic, corrosive liquids - emptied forcibly with a safety bulb - rinsed out after delivery - CORRECT ANSWER Rinsed out after delivery" "The destruction of erythrocytes to release hemoglobin is called: - hemorrhage - hemostasis - erythropoiesis - hemolysis - hypoxia - CORRECT ANSWER Hemolysis" "Which factor may cause a blood smear to be too thin: - the angle of the spreader is too high - the edge of the spreader is cracked - the smear is spread too slowly - the angle of the spreader is too low - a dirty spreader is used - CORRECT ANSWER The angle of the spreader is too low" "The test to measure the oxygen-carrying capacity of RBCs is: - CBC - Hct - ESR - Hgb - MCV - CORRECT ANSWER Hgb" "An immature neutrophil is called a: - blast cell - LE cell - band cell - reticulocyte - packed cell - CORRECT ANSWER Band cell" "The test that counts the number of immature RBCs is the: - osmatic fragility test - differential - reticulocyte count - RBC count - Stab cell count - CORRECT ANSWER Reticulocyte count" "Which test does not monitor a patient's coagulation mechanism? - PT - MCHC - APTT - FDP - Platelet count - CORRECT ANSWER MCHC" "Choose the laboratory department this test is performed in: Glucose - Clinical Chemistry - Microbiology - Histology - Hematology - Coagulation - Cytology - CORRECT ANSWER Clinical Chemistry" "Choose the laboratory department this test is performed in: FOB (Fecal Occult Blood Test) - Clinical Chemistry - Microbiology - Hematology - Coagulation - Cytology - a and b are correct - CORRECT ANSWER Clinical Chemistry, Microbiology" "Choose the laboratory department this test is performed in: LD isoenzymes - Clinical Chemistry - Microbiology - Histology - Hematology - Coagulation - Cytology - CORRECT ANSWER Clinical Chemistry" "Choose the laboratory department this test is performed in: Testicular Cyst - Clinical Chemistry - Microbiology - Histology - Hematology - Coagulation - Cytology - CORRECT ANSWER Histology" "Choose the laboratory department this test is performed in: Reticulocyte Count - Clinical Chemistry - Microbiology - Histology - Hematology - Coagulation - Cytology - CORRECT ANSWER Hematology" "Choose the laboratory department this test is performed in: 17-KS (ketosteroids) - Clinical Chemistry - Microbiology - Histology - Hematology - Coagulation - Cytology - CORRECT ANSWER Clinical Chemistry" "Choose the laboratory department this test is performed in: PTT - Clinical Chemistry - Microbiology - Histology - Hematology - Coagulation - Cytology - CORRECT ANSWER Coagulation" "Choose the laboratory department this test is performed in: Pap smear - Clinical Chemistry - Microbiology - Histology - Hematology - Coagulation - Cytology - CORRECT ANSWER Cytology" "Choose the laboratory department this test is performed in: CSF for Culture and Sensitivity - Clinical Chemistry - Microbiology - Histology - Hematology - Coagulation - Cytology - CORRECT ANSWER Microbiology" "Choose the laboratory department this test is performed in: Lipoprotein Electrophoresis - Clinical Chemistry - Microbiology - Histology - Hematology - Coagulation - Cytology - CORRECT ANSWER Clinical Chemistry" "A plasma protein involved in coagulation is: - immunoglobulin - gamma globulin - albumin - erythropoietin - fibrinogen - CORRECT ANSWER Fibrinogen" "The buffy coat is made up of: - WBC's and platelets - granulocytes - erythrocytes and granulocytes - reticulocyte - platelets - CORRECT ANSWER WBCs and platelets" "Quality control is - running known an unknown controls - involvement in LPTP program - for accuracy and precision - insuring control are within +/- 2SD - all of the above - CORRECT ANSWER All of the above" "A microbiology transport medium will contain activated charcoal - to prevent bacterial death - to help the staining process - to absorb toxic substances - to keep a neutral pH - to maintain oxygen levels - CORRECT ANSWER To absorb toxic substances" "Which is not a liver function test? - Albumin - ALP (alkaline phosphatase) - CK (creatine kinase) - Bilirubin - AST - CORRECT ANSWER CK (Creatine kinase)" "When collecting specimens for C & S the patient should: - fast for 12-14 hours - be off antibiotics for several days prior to collection - have all x-rays done prior to collection - come to the laboratory first thing in the morning - follow any necessary dietary restrictions - CORRECT ANSWER Be off antibiotics for several days prior to collection" "When an agar plate is streaked correctly the final result is: - a pure culture - individual colonies - no growth of pathogens - dense growth which covers the plate - a non-contaminated specimen - CORRECT ANSWER Individual colonies" "Which chemical is not explosive? - crystal violet - ether - picric acid - sodium azide - potassium metal - CORRECT ANSWER Crystal violet" "Which reagent is not used to concentrate and stain ova and parasite specimens? - zinc sulphate - 10% formalin - ether - crystal violet - CORRECT ANSWER Crystal violet" "Which solvent is not flammable? - ether - ethanol - methanol - xylene - saline - CORRECT ANSWER Saline" "Which is not a qualitative result: - few bacteria present - 1+ glucose - moderate amount of crystals seen - urobilirubin + 2 - specific gravity 1.010 - CORRECT ANSWER Specific gravity 1.010" "The universal solvent is: - 0.85% sodium chloride - 8.5% NaCl - water - 10% ethanol - absolute alcohol - CORRECT ANSWER water" "A patient with a heart condition may be sent to ______ for testing and observation: - FBS - OPD - ICU (intensive care unit) - CCU (critical/cardiac/coronary care unit) - c and d are correct - CORRECT ANSWER c and d are correct" "The most commonly used microscope in the clinical laboratory is the: - electron - dark-field - phase-contrast - fluorescent - light - CORRECT ANSWER Light" "A condition in which RBC's and Hgb are decreased: - AIDS - leukemia - polycythemia - anemia - fibrinolysis - CORRECT ANSWER Anemia" "Convert 41.0 C to Fahrenheit: - 100.0 °F - 74.6 °F - 110.0 °F - 112.0 °F - 105.8 °F - CORRECT ANSWER 105.8 °F" "Some bacteria can produce a capsule which is resistant to heat and drying. This is called: - scab - tunic - spore - cyst - sheath - CORRECT ANSWER spore" "The layer above the precipitate in a solution is the: - supernatant - solute - suspension - sediment - solvent - CORRECT ANSWER Supernatant" "The function of the respiratory system is the: - to supply oxygen to tissues - to remove carbon dioxide from tissues - to regulate heart beats - to regulate the endocrine system - a and b are correct - CORRECT ANSWER a and b are correct" "EDTA prevents clotting by: - binding fibrinogen - binding calcium ions - by inhibiting prothrombin - by inhibiting factor VIII - by inhibiting antihaemophilia factor - CORRECT ANSWER binding calcium ions" "Which type of plastic ware can be autoclaved? - polyethylene - polystyrene - polypropylene - polyvinyl chloride - pyrex - CORRECT ANSWER Polypropylene" "Which type of pipette has calibration marks to the tip? - volumetric - mohr - micropipette - serological - SMI - CORRECT ANSWER Serological" "Blood taken for arterial or venous blood gases is: - kept at body temperature until testing - drawn into an SST tube - put on ice and performed STAT - drawn fasting - spun down - the serum is transferred to an acid-washed tube - CORRECT ANSWER Put on ice and performed STAT" "Insulin: - is a hormone - is produced by the pancreas - has the opposite effect to glucagon - regulates blood glucose levels - all of the above - CORRECT ANSWER All of the above" "TSH (thyroid stimulating hormone) is a hormone: - produce by the thyroid gland - which stimulates T3 and T4 to be secreted - which stimulates testosterones to be secreted - also produced by the parathyroid gland - CORRECT ANSWER Which stimulates T3 and T4 to be secreted" "17-hydroxy steroids (17-OH) and 17-ketosteroids (17-KS) requires: - 24 hour urine - heparinized plasma - serum, frozen after separation from the clot - 72 hour stool - random urine - CORRECT ANSWER 24 hour urine" "Cortisol is: - tested on plasma (green top tube) or serum (SST/yellow top) - not affected by diet or exercise - drawn as a fasting or timed specimen - an adrenal medulla function - a and c are correct - CORRECT ANSWER a and c are correct" "Lactose Tolerance Testing: - will diagnose a patient's inability to digest milk sugar - cannot be done on urine samples - will diagnose enzyme deficiency - requires the patient to fast for 12-14 hours - a and c are correct - CORRECT ANSWER a and c are correct" "Which is not a type of WBC? - reticulocyte - basophil - eosinophil - monocyte - lymphocyte - CORRECT ANSWER Reticulocyte" "The anticoagulant required for differential blood film: - Sodium citrate - EDTA - Sodium Heparin - Sodium oxalate - potassium oxalate - CORRECT ANSWER EDTA" "Vacutainers containing EDTA are used for each test except: - RBC count - ESR - platelet count - electrolyte profile - reticulocyte count - CORRECT ANSWER Electrolyte profile" "Which is a kidney function test? - BUN - creatinine clearance - electrolyte profile - total protein - all of the above - a, b, and d are correct - CORRECT ANSWER All of the above" "BSP (Body Substance Precautions) - stands for Biological Safety Procedures - is limited to blood urine infections only - is a complete infection control approach - has the same guidelines for all North America - c and d are correct - CORRECT ANSWER c and d are correct" "Which is false regarding the handling of radioactive reagents? - handling time should be kept at a minimum - no amount may be sent to garbage into the sewer system - small amounts may be sent to garbage after background counts have been reached - store away from high traffic areas - monitoring of personnel is necessary only when large quantities are used - CORRECT ANSWER no amount may be sent to garbage into the sewer system" "Xylene is used: - fix autopsy specimens - dehydrate tissue - attached cover slips to slides - clear tissue in paraffin wax - embed tissue in paraffin wax - CORRECT ANSWER Clear tissue in paraffin wax" "The type of fire extinguisher most often used in the clinical laboratory is: - a type - b type - c type - abc type - carbon dioxide charged - CORRECT ANSWER ABC type" "Which test will not be performed on a grossly hemolyzed specimen? - LD (lactate dehydrogenase) - CK (creatine kinase) - K (potassium) - sedimentation rate - all of the above - a, b, and c are correct. - CORRECT ANSWER a, b, and c are correct." "Specimen identification is important to all testing. However, extra precautions are necessary when labelling specimens for: - c & s - ABO and Rh, crossmatch - therapeutic drug monitoring - factor assays - HIV - CORRECT ANSWER - ABO and Rh, crossmatch" "Specimens for transport through CANADA POST: - cannot be mailed - must be sent priority post - are put into a double packed container with absorbent material - have no special identification procedures to maintain patient confidentiality - b and c are correct - CORRECT ANSWER b and c are correct" "The tablet used for glucose testing in urine is: - clinitest - ictotest - acetest - TCA - SSA - CORRECT ANSWER Clinitest" "A refractometer is used to test: - Hgb in urine - urine osmolality - Urine SG - urobilinogen in urine - the presence of nitrites in urine - CORRECT ANSWER Urine SG" "Which test/s is used for the turbidimetric screening of urine protein? - TCA - HCL - SSA - Albutest - a and c are correct - CORRECT ANSWER a and c are correct" "Which reagent is stored under water? - xylene - ethanol - drabkin's reagent - picric acid - ether - CORRECT ANSWER Picric acid" "Which cytology specimen cannot be prepared by the cytospin method? - CSF - Joint fluid - urine - breast fluid - all of the above are suitable - CORRECT ANSWER Joint fluid" "Which is a true statement regarding Cytology testing? - all cytology are performed STAT - BSP precautions are not required - formalin is a common fixative - cytospray is a common fixative - two of the above are true - CORRECT ANSWER Cytospray is a common fixative" "If 0.2 ml of sample is aspirated into an automatic dilutor and added to 5 ml of diluent, what is the final dilution? - 1/51 - 0.2/5 - 1/26 - 1/25 - None of the above - CORRECT ANSWER 1/26" "Which is a supravital stain? - ziehl-neelson stain - gram's stain - wright's stain - romanowsky stain - new methylene blue - CORRECT ANSWER New methylene blue" "What could cause precipitation on a slide when performing a Wright's stain? - insufficient removal of metallic scum during washing - too much buffer - excessive humidity in the air - staining time too short - water in the methanol - CORRECT ANSWER insufficient removal of metallic scum during washing" "What is the mounting medium used to coverslip hematology slides? - permount - eosin - formalin - xylene - plasticene - CORRECT ANSWER Permount" "How will drawing NSQ blood in the EDTA tube affect the spun hematocrit value? - no effect - blood will hemolyze and give inaccurate results - falsely increased value - falsely decreased value - clots will form and a hematocrit can't be donw - CORRECT ANSWER falsely decreased value" "Drabkin's reagent - is used in hematology - contains the poison cyanide - is sensitive to light - a and b - all of the above - CORRECT ANSWER All of the above" "Which factor would increase tissue processing time for histology specimens? - gentle heat - dense tissue - gentle agitation - vacuum infiltration - porous tissue - CORRECT ANSWER Dense tissue" "When a tissue is "fixed" it means: - putrefaction and autolysis are prevented - the tissue is dehydrated - the tissue is retained in a lifelike manner - all calcium ions have been removed - a and c are correct - CORRECT ANSWER a and c are correct" "Which reagent is used to embed tissue after processing? - permount - paraffin - xylene - formic acid - liquid nitrogen - CORRECT ANSWER Paraffin" "A tissue is decalcified: - before fixation - after embedding - after fixation - at the time it is sectioned - just before staining - CORRECT ANSWER After fixation" "What is used to hold a specimen larger than 5 mm for tissue processing? - basket - cuvette - rack - cassette - wire netting - CORRECT ANSWER Basket" "Cytology smears of sputum and synovial are fixed with: - toluene - benzene - pap stain - 10 % ethanol - 95 % ethanol - CORRECT ANSWER 95% ethanol" "A PKU (phenylketonuria/newborn screening) test detects: - a sex-linked anemia - a genetic defect in metabolism - a viral disease - severe kidney disease - alzheimer's in the elderly - CORRECT ANSWER A genetic defect in metabolism" "The notation 10^3 means: - 100 - 30 - 1000 - 300 - 3000 - CORRECT ANSWER 1000" "Which will increase CO2 tension when incubating microbiology cultures? - co2 incubator - gas pak - candle jar - anaerobic jar - a and c are correct - CORRECT ANSWER a and c correct" "Which will create anaerobic conditions when incubating microbiology cultures? - CO2 incubator - gas pak - candle jar - anaerobic jar - b and d are correct - CORRECT ANSWER b and d are correct" "The meniscus is: - a type of balance - a tip of a pipette - the precipitate of a solution - the curved surface of a liquid - a special type of plastic ware - CORRECT ANSWER the curved surface of a liquid" "Which is true regarding Ziehl-Neelson staining? - the mycobacteria stain blue - it is also called Acid Fast Staining - carbolfuchsin, acid alcohol, and methylene blue are used - it is done to detect tuberculosis - b, c, and d are correct - CORRECT ANSWER b, c, and d are correct" "Serum specimens which are milky white are termed: - hemolyzed - icteric - lipemic - opaque - turbid - CORRECT ANSWER Lipemic" "The due date of a pregnant women is: - ASAP - HDN - EDC - SD - CV - CORRECT ANSWER EDC (estimated date of confinement)" "A person who has a blood clot struck in one area has: - a thrombus - an embolism - a hematoma - phlebitis - ischemia - CORRECT ANSWER a thrombus" "What statement is true? - a base releases H+ in solution - an acid releases OH- in solution - a base has a lower pH than an acid - an acid added to a base forms a salt - an acid will turn pH paper blue - CORRECT ANSWER An acid added to a base forms a salt" "When solid particles in a solution settle out, it is called: - distillation - precipitation - filtration - deionization - flotation - CORRECT ANSWER Precipitation" "Vaporizing and condensing a substance to purify it is called: - distillation - precipitation - filtration - deionization - flotation - CORRECT ANSWER Distillation" "A solution that would cause a cell to swell is called: - isotonic - salty - hypertonic - physiological - hypotonic - CORRECT ANSWER hypotonic" "The anticoagulant in the green top vacutainer is: - sodium citrate - EDTA - heparin - sodium fluoride - potassium oxalate - CORRECT ANSWER Heparin" "The largest vein in the body is the: - iliac vein - pulmonary vein - aorta - hepatic portal vein - vena cava - CORRECT ANSWER Vena Cava" "A serum diluted 1/4. The chloride result on the serum is 30 mmol/L. What result is reported to the physician? (in mmol/L) - 4 mmol/L - 30 mmol/L - 34 mmol/L - 90 mmol/L - 120 mmol/L - CORRECT ANSWER 120 mmol/L" "A patient with rheumatoid arthritis have an ESR result that is: - decreased - normal - slightly increased - increased - not affected - CORRECT ANSWER Increased" "How much 5% HCl is required to make 500 ml of 2% solution? - 100 ml - 200 ml - 300 ml - 400 ml - none of the above - CORRECT ANSWER 200 ml" "2.99 is between: - 2.989 and 2.991 - 2 and 3 - 2.98 and 3.00 - 2.9 and 3.0 - none of the above - CORRECT ANSWER 2.98 and 3.00" "Which unit is the smallest? - nanometer - meter - millimeter - micrometer - decimeter - CORRECT ANSWER Nanometer" "A creatinine clearance test is done: - on 24 hour urine only - on serum only - on serum drawn three days before collecting 24 hour urine - to determine kidney function - none of the above - CORRECT ANSWER to determine kidney function" "Which is not a test in cardiac enzyme profile? - CK - AST - LDH - CPR - CK isoenzymes - CORRECT ANSWER CPR" "Which test does not give information about erythrocytes? - malarial smear - rbc count - aptt - esr - hemoglobin - CORRECT ANSWER APTT" "Which method is acceptable to discard used needles? - discard the whole needle into puncture proof container - cut needle and discard into puncture proof container - bend needle and discard into puncture proof container - discard into biohazard bag - discard into regular garbage - CORRECT ANSWER discard the whole needle into puncture proof container" "Serum left sitting on the clot in a centrifuged red top tube will have higher ______ than normal: - glucose - protein - albumin - potassium - phosphorus - CORRECT ANSWER Potassium" "Blood smears must be made from vacutainers containing the anticoagulant? - Heparin - potassium oxalate - edta - sodium citrate - sodium fluor