MLPAO Exam Review - Questions and Answers (Complete Solutions)

MLPAO Exam Review - Questions and Answers (Complete Solutions) 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 A specime ...

MLPAO Exam Review - Questions and Answers (Complete Solutions) 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 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 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 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. 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 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 If a vein feels lumpy or ropey when palpated it is probably: a. Flabby b. Deep c. Tortuous d. Superficial 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) Which term means death of the heart muscle? a. Myocardial infarction b. Angina pectoris c. Cardiomyopathy d. Myocardial angina Glassware used to measure 24 hour urine is a (an) a. Volumetric flask b. Beaker c. Erlenmeyer cylinder d. Graduated cylinder e. Safety bulb 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 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 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 Which piece of glassware would not give critical measurement? a. Volumetric flask b. Beaker c. Erlenmeyer cylinder d. Graduated cylinder e. safety bulb The durable material used to make heat resistant glassware is: a. Polyethylene b. Soda lime c. Polystyrene 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 The destruction of all micro-organisms including spores is called: a. sanitation b. antisepsis c. sterilization d. disinfection e. asepesis " ug " is a unit to describe: a. time b. volume c. distance d. weight e. length 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 Cells in a hypertonic solution will: a. swell and burst b. dehydrate c. hemolyze d. not be affected e. stop mitosis The solution used to fix a pap smear is: a. wright stain b. hematoxylin c. physiological saline d. cytospray e. methylene blue Blood for an RBC count must be prepared from: a. EDTA blood b. citrated blood c. heparinized blood d. oxalated blood e. clotted 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 Which piece of histology equipment is not temperature dependent: a. wax b. tissue processor c. microtome d. embedding center e. waterbath 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 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 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 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 Which test could not be performed on a serum sample: a. iron b. vitamin B12 c. total lipids d. clotting factors e. potassium The shape of a normal erythrocyte is described as: a. biconcave disc b. spherocyte c. olymorphonucleocytes d. thin column e. bull's eye Glucose results are correctly reported in: a. g/mmol b. mmol/L c. g/L d. g/ml e. g/dl If a patient refuses to have a venipuncture done you should: a. tear up the requisition b. collect a urine sample c. politely ask a patient to come back next week d. restrain the patient and proceed with the venipuncture e. notify the patient's physician Which statement is false when performing a venipuncture: a. the vein is entered at a 15-20 degree angle b. the tubes are pushed onto the needle with the thumb of the strongest hand c. the bevel of the needle is pointed up when entering the vein d. the tourniquet is removed before withdrawing the needle e. the patients arm is cleansed before palpating the vein A biohazardous container is used to discard: a. lancets b. needles c. band-aid wrappers d. a & b e. a, b & c Which needle gauge corresponds with the smallest needle size: a. 18 b. 20 c. 21