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HISTOLOGY Multiple Choice Questions A1. What vein/veins is not used to obtain a venous blood sample: a. basilica vein b. cephalic vein c. medial cubital vein d. femoral vein Answer: d) femoral vein A2. A blood specimen collected in a heparinized tube is centrifuged. It will separate into: a. serum and clot b. plasma and clot c. serum and plasma d. plasma, buffy coat, RBC Answer: d) plasma, buffy coat, RBC A3. Hemolysis may result from: a. using a 25-gauge needle on an adult b. vigorously shaking the blood specimen c. refrigerating the vacutainer before use d. leaving the tourniquet on for 3 minutes Answer: e) all of the above A4. The test procedure that uses a Westergren tube is: a. erythrocyte sedimentation rate b. hematocrit c. reticulocyte count d. microhematocrit Answer: a) erythrocyte sedimentation rate A5. Latex gloves protect the labemployee from: a. accidental needle puncture b. microtome injury c. patient aeros