OSMT QUESTIONS AND ANSWERS (All Correct Answers) QUESTION BANK

OSMT QUESTIONS AND ANSWERS (All Correct Answers) QUESTION BANK Glassware used to measure 24-hour urine volumes is a: volumetric flask beaker Erlenmeyer cylinder graduated cylinder safety bulb graduated cylinder Glassware used to make 100 ml of a 12% solution is a: volumetric flask beaker Erlenmeyer cylinder graduated cylinder safety bulb Answer: a) volumetric flash a suction device used to draw up liquids is a: volumetric flask beaker Erlenmeyer cylinder graduated cylinder safety bulb Answer: e) safety bulb The pipette with a bulged-out portion in the middle is a: Mohr pipette pasture pipette serological pipette volumetric pipette micro-pipette Answer: d) volumetric pipette Which piece of glassware would not give critical measurement: volumetric flask beaker Erlenmeyer cylinder graduated cylinder safety bulb Answer: b) beaker The durable material used to make heat resistant glassware is: polyethylene soda lime polystyrene borosilicate polyvinyl chloride Answer: d) borosilicate Solid crystals of potassium oxalate are added to distilled water in a container. What term would describe the potassium oxalate? solution solvent solute reagent a & c Answer: c) solute The destruction of all micro-organisms including spores is called: sanitation antisepsis sterilization disinfection asepsis Answer: c) sterilization A ug is a unit to describe: time volume distance weight length Answer: d) weight A pH of 2 is _____ than a pH of 5: 1000 times more acidic 100 times more acidic 2 times less acidic 20 times less acidic 1000 times more acidic Answer: e) 1000 times more acidic Cells in a hypertonic solution will: swell and burst dehydrate hemolyze not be affected stop mitosis Answer: b) dehydrate The solution used to fix a pap smear is: wright stain hematoxylin physiological saline cytospray methylene blue Answer: d) cytospray Blood for an RBC count must be prepared from: EDTA blood citrated blood heparinized blood oxalated blood clotted blood Answer: a) 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 Answer: a) formic acid Which piece of histology equipment is not temperature dependent: wax tissue processor microtome embedding center water bath Answer: c) microtome A biopsy is: a removal of biological fluid the removal of an organ a post mortem examination excision of a representative tissue sample a collection of blood Answer: d) excision of a representative tissue sample During tissue processing, what is the correct sequence of steps: clearing, dehydration, infiltration clearing, infiltration, dehydration dehydration, infiltration, clearing dehydration, clearing, infiltration embedding, sectioning, staining Answer: d, dehydration, clearing, infiltration Fixation is important in tissue processing because it: prevents cell morphology changes and shrinkage allows tissue to be examined in a life-like condition facilitates the staining process a & c a, b, & c Answer: e) a, b, & c the liquid portion of blood remaining after a clot has formed is called: the buffy coat serum plasma lymph tissue fluid Answer: b) serum Which test could not be performed on a serum sample: iron vitamin B12 total lipids clotting factors potassium Answer: d) clotting factors The shape of a normal erythrocyte is described as: biconcave disc spherocyte polymorphonucleocyte thin column bull's eye Answer: a) biconcave disk Glucose results are correctly reported in: g/mmol mmol/L g/L g/ml g/dl Answer: b) mmol/L If a patient refuses to have a venipuncture done you should: tear up the requisition collect a urine sample politely ask a patient to come back next week restrain the patient and proceed with the venipuncture notify the patient's physician Answer: e) notify the patients 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 Answer: e) the patient's arm is cleansed before palpating the vein A biohazardous container is used to discard: lancets needled band-aid wrappers a & b a b & c Answer: d) a & b Which needle gauge corresponds with the smallest needle size: 18 20 21 22 23 Answer: e) 23 The vacutainer tube which is used to collect and separate serum is the: red green lavender light blue SST Answer: e) 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, blue, grey blue, plain red top, grey, lavender