MLPAO MLA/T Exam Accurate 100%

Which of the following is the best example of homeostasis? a) Sexual reproduction b) Growth c) Regulation of body temperature d) Growth of hair under the arms e) Storage of food in the form of fat - ANSWER c) Regulation of body temperature The concentration of physiological saline is: 1 a) 5.0% b) 7.0% c) 8.5% d) 0.85% e) 0.7% - ANSWER d) 0.85% Which of the following pipettes is the most accurate? a) Serological pipette b) Mohr pipette c) Volumetric pipette d) Pasteur pipette e) None of the above - ANSWER c) Volumetric pipette Hypersecretion of insulin would result in: a) Weak and brittle bone b) Diabetes c) Hyperglycemia d) Glucosuria e) Hypoglycemia - ANSWER e) Hypoglycemia Deoxygenated blood is pumped into the: a) Systemic circulation b) Pulmonary circulation c) Lymphatic system d) Coronary sinus e) None of the above - ANSWER b) Pulmonary circulation The semi-lunar valve: a) Are located in between the Rt. Atrium and ventricles b) Occur in the carotid sinus c) Open to allow blood to leave the ventricles d) Two of the preceding e) None of the above - ANSWER c) Open to allow blood to leave the ventricles After pulmonary circulation, the blood is received by: a) Right atrium b) Left atrium c) Left ventricle d) Right ventricle e) None of the above - ANSWER b) Left atrium When you have a STAT request, you should perform the test: a) As soon as possible b) Immediately c) Until all the specimens arrive d) After your break e) 2 hours after specimens arrive - ANSWER b) Immediately If you use a "To Contain" pipette, you should: a) Blow out the last drop b) Let the last drop stay in the micropipette c) Rinse it to make sure all of the content is delivered d) Use as a normal pipette e) None of the above - ANSWER c) Rinse it to make sure all of the content is delivered The valve located between the right atrium and the right ventricle is: a) Mitral valve b) Tricuspid valve c) Semi lunar valve d) Aortic valve e) None of the above - ANSWER b) Tricuspid valve The electrical conductivity of distilled or deionized water is: a) High b) Normal c) Low d) Same as 0.85% saline e) Same as tap water - ANSWER c) Low In order to deliver the total volume from the pipette which has a frosted ring near the colour code, you will: a) Rinse the pipette b) Let the last drop remain c) Stop before the 9 mark d) Blow out the last drop e) Ask for assistance - ANSWER d) Blow out the last drop Which of the following tests are eligible for stat recording: a) CSF for microbiology b) BHCG for suspected ectopic pregnancy c) Blood gasses d) Lipid assessment e) AB and C are correct - ANSWER e) AB and C are correct Which of the following is not a cardiac enzyme? a) Creatin Phosphokinase b) Aspartate aminotransferase c) Lactic Dehydrogenase d) Serum Glutamic Oxaloacetic Transaminase e) Alkaline phosphatase - ANSWER e) Alkaline phosphatase VMA is used to test for: a) Carbohydrates metabolism b) Epinephrin metabolism c) Fat metabolism d) Pulmonary function e) Cardiac enzymes - ANSWER b) Epinephrin metabolism Which of the following has valves? a) Arteries b) Arterioles c) Capillaries d) Veins e) All of the above - ANSWER d) Veins The specimen we commonly use for 17-ketosteroid test is:a) Clean catch mid-stream urine b) Plasma c) Whole body d) 24 hour urine e) Stool - ANSWER d) 24 hour urine Xylose tolerance test is primarily tested for: a) Insulin levels b) Absorption ability of the small intestine c) Digestive enzyme levels d) Heart condition e) Porphine levels - ANSWER b) Absorption ability of the small intestine Which of the following could not be considered as a source of error in microhematocrit tests? a) Hemolysed specimen b) Hemoconcentrated specimen c) Overfilling of the capillary tube d) Including the buffy coat for the red cell column reading e) None or the above - ANSWER e) None or the above The normal life span of erythrocyte is: a) 48 hrs. b) 90 days c) 120 days d) ½ year e) 14 days - ANSWER c) 120 days Leaving the urine for prolonged time will increase: a) Bacteria b) Urobilinogen c) Nitrite d) pH e) All of the above - ANSWER e) All of the above Hemoconcentration can be caused by: a) Tourniquet which is left on the patient too long b) A rolling vein c) Antiseptic is not dried d) A small gauge number needle e) Two of the proceeding - ANSWER e) Two of the proceeding Whole blood is defibrinated by: a) EDTA b) Heparin c) Sodium citrate d) Acetic acid e) Glass beads - ANSWER e) Glass beads The basic dye in Romanowsky staining is: a) Cresyl blue b) Bicarbonate c) Eosin d) Crystal violet e) Methylene blue - ANSWER e) Methylene blue Supravital stain is used for: a) WBC count b) RBC count c) Platelet count d) Reticulocyte count e) H estimation - ANSWER d) Reticulocyte count Which of the following does not have a nucleus? a) WBC b) RBC c) Basophil d) Platelets e) Two of the preceding - ANSWER e) Two of the preceding Which of the following tests is not part of a CBC profile? a) Leukocyte count b) Haemoglobin estimation c) Differential cell count d) RBCS e) None of the above - ANSWER e) None of the above The counting chamber used for RBC count is called: a) Hemoglobinometer b) Hemocytometer c) Hemocounter d) Hemometer e) None of the above - ANSWER b) Hemocytometer The PH of blood is: a) Acidic b) Neutral c) Basic d) Slightly alkaline e) Slightly acidic - ANSWER b) Neutral The anticoagulant used in a CBC profile is: a) EDTA b) Oxalate c) Citrate d) Heparin e) Dichromate - ANSWER a) EDTA Which of the following should not be considered as a source of error in ESR? a) Excessive anticoagulant b) Partially clotted blood c) Use of cold unmixed blood d) Air bubbles in the blood column e) None of the above - ANSWER e) None of the above A decrease in the size of the erythrocyte is known as: a) Macrocytosis b) Anisocytosis c) Microcytosis d) Hemolysis e) Poikilocytosis - ANSWER c) Microcytosis Which of the following anticoagulant does not react with calcium to prevent clotting? a) Double oxalate b) EDTA c) Sodium citrate d) Heparin e) None of the above - ANSWER d) Heparin When blood clots, the fluid that remains after separation of the clot is called: a) Plasma b) Whole blood c) Cell suspension d) Serum e) Packed cells - ANSWER d) Serum Which of the following does not belong to the granulocytic series? a) Eosinophils b) Neutrophils c) Basophils d) Lymphocytes e) None of the above - ANSWER d) Lymphocytes The buffer solution used in the Wright's stain procedure should have a precise range. Which of the following pH values is satisfactory? a) 6.0 b) 6.4 c) 7.0 d) 7.4 e) 5.5 - ANSWER b) 6.4 The cytoplasm of the eosinophilic segmented cells after Wright's stain contains: a) Large purple granules b) No granules c) Small blue granules d) Large coarse red-orange granules e) Clumps of black granules - ANSWER d) Large coarse red-orange granules Which of these components would normally be found in plasma? a) Cholesterol b) Calcium c) Glucose d) Fibrinogen e) All of the above - ANSWER e) All of the above A type of cancer in which white bloods cells multiply wildly and crowd out red blood cells and platelets: a) Leukopenia b) Leukemia c) Pernicious anaemia d) Hemolysis e) Septicemia - ANSWER b) Leukemia Absorbent material is placed in TDG container a) With the sample and the requisition b) Inside the internal bag c) Between the internal bag and the external bag d) Outside the external bag e) Anywhere - ANSWER b) Inside the internal bag Absorbent material in TDG box should be enough a) To absorb the entire liquids b) To prevent leakage from the internal layer to the external layer c) To prevent leakage from the external layer to the container d) To protect the delivery personnel e) To prevent aerosols only - ANSWER a) To absorb the entire liquids Patient consent for the phlebotomy procedure is a permission which is a) Written b) Verbal c) Cooperative d) Shaking the head of approval e) All of the above - ANSWER b) Verbal Rouleaux is the: a) Thrombus in the blood b) Clotting of blood c) Fibrin clot in serum d) Aggregation of RBC e) Decolourization of RBC - ANSWER d) Aggregation of RBC Which of the following is not required in blood clotting? a) Prothrombin b) Heparin c) Calcium d) Fibrinogen e) Platelets - ANSWER b) Heparin Which of the following specimens are required for creatinine clearance tests? a) Serum b) Whole blood c) First morning urine d) 24 hr. Urine e) Two of the above - ANSWER e) Two of the above If a patient refuses venipuncture, the laboratory assistant should: a) Inform supervisor b) Ask for assistance to draw the blood c) Tell the patient that we should do our job and Dr. Requested this regardless to what he/she feels d) Accept patient's decision and document on the requisition e) Two of the above - ANSWER d) Accept patient's decision and document on the requisition If a urine specimen is allowed to sit for more than one hour, which of the following changes may take place? a) It will become cloudy b) The ph level will increase c) Any present glucose levels will be decreased d) Any BC or WBCs present will be broken down e) All or the above - ANSWER e) All or the above Bile pigments in a urine specimen will cause the urine to be: a) Cloudy b) Foul smelling c) Orange in colour d) Yellowish brown in colour e) Two of the above - ANSWER d) Yellowish brown in colour Which of the following readings indicate a concentrated urine specimen: a) pH6 b) RBC: 3/HPF c) Protein: trace d) Ketone bodies: +1 e) Specific gravity: 1.035 - ANSWER e) Specific gravity: 1.035 Which of the following should normally. be present in urine? a) Nitrate b) Bilirubin c) Glucose d) Urea e) Two of the preceding - ANSWER e) Two of the preceding The pH of most urine specimens are: a) Acidic b) Alkaline C) Neutral d) a & b are correct e) a, b & c are correct - ANSWER a) Acidic Blood may normally be present in the urine due to: a) Urethritis b) Cystitis c) Menstruation d) Kidney stone e) Trichomonas vaginitis - ANSWER c) Menstruation A first voided morning specimen in preferred for performing a microscopic examination of urine because a) It is more dilute b) It contains more dissolved substances c) It contains more abnormal substances d) It contains fewer microorganism e) All of the above - ANSWER b) It contains more dissolved substances A 24 hour urine specimen maybe used to perform test for all of the following except: a) Fibrinogen b) Catecholamines c) Urobilinogen d) Creatinine e) Ketosteroids - ANSWER a) Fibrinogen The reagent that we may use for enzymatic glucose test is: a) Oxidase b) Amylase C) Akaline phosphatase d) Glucase e) Sucrase - ANSWER a) Oxidase If you receive a sample for CSF with a C&S urine requisition a) Reject the sample and discard the sample in biological hazard container b) Delay processing c) Send the patient back to the doctor d) Obtain verification and correction from the physician immediately e) Assume that this sample for the same patient named on the requisition - ANSWER d) Obtain verification and correction from the physician immediately If the individual is healthy, the filtrate in Bowman's capsule will not contain: a) Glucose b) Salts c) Blood cells d) Proteins e) Two of the above - ANSWER e) Two of the above The most abundant immunoglobulin in the body is: a) IgG b) IgA c) IgM d) IgE e) IgD - ANSWER a) IgG The normal value of glucose present in urine is: a) 3.5-5.8 mg/L b) 3.5-5.8 mmol/L c) 160 mg/L d) 50 mg/day e) Zero - ANSWER e) Zero Which of the following will interfere with the chemical examinations of a routine urinalysis? a) Riboflavin b) Ascorbic acid c) Ferrous oxide d) Vit. B12 e) All of the above - ANSWER b) Ascorbic acid Which of the following is not true for PKU: a) PKU=Phenylketonuria b) It is a genetic disorder c) PKU tests will be done primarily on infants d) Untreated will lead to mental retardation and slowness of growth e) None of the above - ANSWER e) None of the above For an accurate result from bilirubin test, specimen in an enclosed container should be kept away from: a) Human b) Light C) Moisture d) ECG machine e) Refrigerator - ANSWER b) Light When we use a spectrophotometer to determine the concentration of a substance, the theory is based on: a) Absorbance is directly proportional to the concentration of the solution b) Absorbance is inversely proportional to transmitted light c) Transmittance is directly proportional to the concentration of the fluid d) Photon emitted by the solution e) a and b are correct - ANSWER e) a and b are correct Specific gravity of urine specimen can be tested by which of the following method: a) Reagent strip b) Urinometer c) Refractometer d) Spectrophotometer e) Three of the above - ANSWER e) Three of the above Xylose tolerance test is used to: a) Stimulate gastrin release b) Determine HCL secretion by the stomach c) Assess mucosal absorption activity of the Gl system d) Check for insulin uptake e) Check for ACTH uptake - ANSWER c) Assess mucosal absorption activity of the Gl system Filtrate passing through the proximal convoluted tubule next enters the: a) Collecting duct b) Descending Loop of Henle c) Afferent arteriole d) Distal convoluted arteriole e) Calyx - ANSWER b) Descending Loop of Henle If an Icteric specimen is contaminated by bacteria, there will be an increase level of: a) Ketone b) Urobilinogen c) Phenylketone d) Hb e) Two of the preceding - ANSWER b) Urobilinogen Which of the following will be required for most quantitative analysis of urine? a) Random urine b) First morning urine c) Clean catch mid stream urine d) Fasting urine e) 24hr urine - ANSWER e) 24hr urine A part of the blood buffer system is: a) bIcarbonate ion b) Calcium ion c) Phosphate ion d) Sodium ion e) None of the above - ANSWER a) bIcarbonate ion In the quality control chart, what percentage of results will be outside the range of + 1 S.D.? a) 2.5% b) 5% c) 16% d) 32% e) 68% - ANSWER d) 32% Artefacts in microscopic urine examinations include: a) Pollen grains b) Fibres c) Dust d) Cast e) A, B & C are correct - ANSWER e) A, B & C are correct Type AB blood has a) Antigen A b) Antigen B c) Antigen A & B d) No antigen e) None of the above - ANSWER c) Antigen A & B Haemolytic disease of a newborn is caused by: a) Antigens of a Rh +ve mother b) Antibodies of an Rh +ve mother c) Antigens of an Rh -ve mother d) Antibodies of an Rh -ve mother e) Antibodies of a father - ANSWER d) Antibodies of an Rh -ve mother A urinary tract infection with bacteria will probably elevate the level of: a) Nitrite b) pH c) Ammonia d) Turbidity e) All of the above - ANSWER e) All of the above Immunology tests are based on the reaction of a) Acid-base b) Antigen-antibody c) Protein SSA d) Lysing agent RBC e) Proton-electron - ANSWER b) Antigen-antibody 5u g= a) 5 x 10€ b) 5 x 10-7 c) 5 x108 d) 5 x 109 e) 5 x 106 - ANSWER d) 5 x 109 In order to maintain an appropriate pH, the renal tubules secrete: a) Hydrogen ions b) Glucose c) Bicarbonate d) Chloride e) Acetate - ANSWER a) Hydrogen ions A chemical substance produced by microorganism, which inhibits the growth of or kills other microorganisms is known as: a) Toxin b) Antitoxin c) Vaccine d) Antibiotic e) Virus - ANSWER d) Antibiotic Accuracy is the expression of: a) The reproductively of a method b) The closeness of measurement to the true value c) The standard deviation of a method d) The reliability e) None of the above - ANSWER b) The closeness of measurement to the true value In the medical lab, P.C. means: a) Before meal b) After meal c) Police constable d) Post cibum e) b and d - ANSWER e) b and d Buffer is: a) Weak acid or weak base with its salt b) Weak acid with weak base c) The salt of a weak acid d) Weak acid with strong base e) None of the above - ANSWER a) Weak acid or weak base with its salt pH can be defined as: a) The number of hydrogen molecules in the solution b) The negative log of the concentration of hydrogen ions C)The osmotic pressure of acid d) Very acidic e) Two of the preceding - ANSWER b) The negative log of the concentration of hydrogen ions Which of the following anticoagulants will be used for cholesterol tests? a) Heparin b) Oxalate c) Citrate d) Sequestrene e) None of the above - ANSWER e) None of the above If the name of a kind of bacterium ends in coccus, then the shape of the individual bacterium is: a) Elongated b) Triangular c) Rod-shaped d) Spherical e) Spiral - ANSWER d) Spherical A toxin is a substance that: a) Can be destroyed by heat b) Is produced by bacteria c) Kills bacteria d) Promotes metabolic rate e) Two of the preceding - ANSWER e) Two of the preceding The best verification of patient ID is: a) Last name-first name, address b) Last name-first name, OHIP No. c) Last name-first name, DOB d) Last name-first name, phone No. e) All of the above - ANSWER c) Last name-first name, DOB Which of the following is used in an acid fast staining procedure? a) Neisser's Methylene blue b) Pararosaniline Methylene blue c) Malachite green d) Ziehl-Neelsen's solution e) Safranin - ANSWER d) Ziehl-Neelsen's solution Thermolabile means: a) Affected by temperature b) Constant temperature c) Heat resistant d) High quality thermometer e) None of the above - ANSWER a) Affected by temperature The term for viable bacteria present in the blood causing fever is: a) Emphysema b) Anaemia c) Porphria d) Hematopotitis e) Septicemia - ANSWER e) Septicemia The final colour of gram negative organisms is: a) Pink b) Violet c) Dark blue d) Tan e) Colourless - ANSWER a) Pink What makes a cell gram positive or gram negative? a) The composition of the cell membrane b) The composition of the nuclear membrane c) The composition of the cell wall d) The composition of the capsule e) None of the above - ANSWER c) The composition of the cell wall Which of the following is the counter stain of Gram's stain? a) Crystal violet b) Safranin c) Acetone-alcohol d) lodine e) None of the above - ANSWER b) Safranin Which of the following acts as a mordant in Gram's stain? a) Crystal violet b) Safranin c) Acetone-alcohol d) lodine e) None of the above - ANSWER d) lodine Beta Hemolysis causes: a) A green appearance surrounding colonies on a blood agar plate b) Completely clear around the colonies on the blood agar plat c) The death of bacteria d) Normal autolysis of cells e) All of the above - ANSWER b) Completely clear around the colonies on the blood agar plat In general, the temperature of an incubator will be set at: a) 21 °C b) 31 °C c) 37 °C d) 47 °C e) 51 °C - ANSWER c) 37 °C SAF fixative for ova and parasite contains the following except: a) Formaldehyde b) Alcohol c) Glacial acetic acid d) Sodium acetate e) None of the above - ANSWER b) Alcohol During the preparation of media, the media is sterilized by: a) Dry heat oven b) Boiling C) Autoclave d) Radiation e) None of the above - ANSWER C) Autoclave All of the following are true for MacConkey agar except: a) It contains lactose b) It is a differential media c) It is primarily used for enteric organisms d) It is used for gram negative organisms e) It is used for staphylococcus aureus - ANSWER e) It is used for staphylococcus aureus Hyperprolactinemia is: a) High serum Prolactin level b) May indicate the presence of pituitary tumour c) Can be a part of normal body changes during pregnancy and breastfeeding d) Can also be caused by disruption of the normal regulation of Prolactin levels by drugs e) All of the above - ANSWER e) All of the above Stool concentration method concentrates which of the following: a) Cysts b) Ova c) Epithelial cells d) RBC e) Two of the above - ANSWER e) Two of the above Stool samples used for culture and sensitivity should be collected in a sterile container containing: a) Physiological saline b) Formalin c) Water d) Sodium Thioglycolate or Cary-Blair media e) Glucose - ANSWER d) Sodium Thioglycolate Preparation of a wet mount is common for: a) Throat swab b) Ear swab c) Wound swab d) Eye swab e) Vaginal swab - ANSWER e) Vaginal swab You have to obtain a consent from a blood donor because: a) Patient knows his body's capability to donate blood b) We guarantee that patient does not have blood infection c) It is legal requirement of which patient will receive the blood d) Ensure that the patient has been informed and is responsible for all consequences e) All of the above - ANSWER c) It is legal requirement of which patient will receive the blood All of the following are true regarding to Hyponatremia except: a) Sodium concentration in the blood is lower than normal b) Leads to low plasma osmolality c) Excess water accumulates in the body at a higher rate than it can be excreted d) Sodium concentration in the blood is higher than normal e) Hyponatremia can affect athletes who consume too much fluid - ANSWER d) Sodium concentration in the blood is higher than normal Which of the following is the carrier of genetic information for all bacteria: a) DNA b) ATP C) ADP d) NADP e) ADH - ANSWER a) DNA Most bacteria grow in. a) Acidic b) Neutral c) Basic d) a and c are correct e) a, b and c are correct - ANSWER b) Neutral