MLPAO Review questions and answers well illustrated.

MLPAO Review questions and answers well illustrated. A profile is: a. A general screening test b. A quantitative laboratory test c. A number of related laboratory tests d. Dorsal view of the patient - correct answers.c. A number of related laboratory tests A specimen is: a. The removal of blood from the antecubital veins b. A small representative of body sample c. The surgical removal and examination of tissue d. The clinical analysis of a urine sample - correct answers.b. A small representative of body sample The purpose of cleansing the site selected for venipuncture is: a. To cause the veins to be more prominent b. To allow blood flow to the area c. To decrease circulation in the arteries d. To carry microorganisms away from the puncture site - correct answers.d. To carry microorganisms away from the puncture site The following may cause a hematoma; a. Pressure applied to the puncture site after the needle is removed b. Removing the tourniquet before the needle is removed c. Using proper venipuncture technique d. Inserting the needle through the vein and puncturing the opposite side. - correct answers.d. Inserting the needle through the vein and puncturing the opposite side. Whole blood is obtained; a. By using a tube containing an anticoagulant b. By centrifuging a clotted specimen c. By using a red- stoppered tube d. By using an SST tube - correct answers.a. By using a tube containing an anticoagulant Venipuncture needles should be discarded: a. Directly into the garbage b. They are actually recycled, not discarded c. Directly into an autoclave bag d. Directly into a Sharps container - correct answers.d. Directly into a Sharps container If a vein feels lumpy or ropey when palpated it is probably: a. Flabby b. Deep c. Tortuous d. Superficial - correct answers.Tortuous To convert Farenheit to Celcius: a. 5/9 (F-32) b. 9/5 + 32 (C) c. 5/9 - 32 (F) d. 9/5 (C + 32) - correct answers.a. 5/9 (F-32) Which term means death of the heart muscle? a. Myocardial infarction b. Angina pectoris c. Cardiomyopathy d. Myocardial angina - correct answers.a. Myocardial infarction Glassware used to measure 24 hour urine is a (an) a. Volumetric flask b. Beaker c. Erlenmeyer cylinder d. Graduated cylinder e. Safety bulb - correct answers.d. Graduated cylinder Glassware used to make 100 mls. of a 12% solution is a (an): a. Volumetric flask b. Beaker c. Erlenmeyer cylinder d. Graduated cylinder e. Safety bulb - correct answers.a. Volumetric flask A suction device used to draw up liquids is a (an) a. Volumetric flask b. Beaker c. Erlenmeyer cylinder d. Graduated cylinder e. Safety bulb - correct answers.e. Safety bulb The pipette with a bulged out portion in the middle is a (an): a. Mohr pipette b. Pasteur pipette c. serological pipette d. Volumetric pipette e. Micro-pipette - correct answers.d. Volumetric pipette Which piece of glassware would not give critical measurement? a. Volumetric flask b. Beaker c. Erlenmeyer cylinder d. Graduated cylinder e. safety bulb - correct answers.b. Beaker The durable material used to make heat resistant glassware is: a. Polyethylene b. Soda lime c. Polystyrene d. Borosilicate - correct answers.d. Borosilicate Solid crystals of potassium oxalate are added to distilled water in a container. What term would describe the potassium oxalate? a. solution b. solvent c. solute d. reagent e. a & c - correct answers. The destruction of all micro-organisms including spores is called: a. sanitation b. antisepsis c. sterilization d. disinfection e. asepesis - correct answers.c. sterilization " ug " is a unit to describe: a. time b. volume c. distance d. weight e. length - correct answers.d. weight A pH of 2 is _____ than a pH of 5: a. 1000 times more acidic b. 100 times more acidic c. 2 times less acidic d. 20 times less acidic e. 1000 times more acidic - correct answers.e. 1000 times more acidic Cells in a hypertonic solution will: a. swell and burst b. dehydrate c. hemolyze d. not be affected e. stop mitosis - correct answers.b. dehydrate The solution used to fix a pap smear is: a. wright stain b. hematoxylin c. physiological saline d. cytospray e. methylene blue - correct answers.d. cytospray Blood for an RBC count must be prepared from: a. EDTA blood b. citrated blood c. heparinized blood d. oxalated blood e. clotted blood - correct answers.a. EDTA blood Which reagent is not routinely used to preserve tissue in a life-like manner: a. formic acid b. zenkers fluid c. 40% formaldehyde dissolved in water d. bouin's fluid e. 10% formalin - correct answers.a. formic acid Which piece of histology equipment is not temperature dependent: a. wax b. tissue processor c. microtome d. embedding center e. waterbath - correct answers.c. microtome A biopsy is: a. a removal of biological fluid b. the removal of an organ c. a post mortem examination d. excision of a representative tissue sample e. a collection of blood - correct answers.d. excision of a representative tissue sample During tissue processing, what is the correct sequence of steps: a. clearing, dehydration, infiltration b. clearing, infiltration, dehydration c. dehydration, infiltration, clearing d. dehydration, clearing, infiltration e. embedding, sectioning, staining - correct answers.d. dehydration, clearing, infiltration Fixation is important in tissue processing because it: a. prevents cell morphology changes and shrinkage b. allows tissue to be examined in a life-like condition c. facilitates the staining process d. a & c e. a, b, & c - correct answers.e. a, b, & c The liquid portion of blood remaining after a clot has formed is called: a. the buffy coat b. serum c. plasma d. lymph e. tissue fluid - correct answers.b. serum Which test could not be performed on a serum sample: a. iron b. vitamin B12 c. total lipids d. clotting factors e. potassium - correct answers.d. clotting factors The shape of a normal erythrocyte is described as: a. biconcave disc b. spherocyte c. polymorphonucleocytes d. thin column e. bull's eye - correct answers.a. biconcave disc Glucose results are correctly reported in: a. g/mmol b. mmol/L