13 Blood System Labs

Question 1

antiblobulin test

Answer 1

test for the presence of antibodies that coat and damage erythrocytes

Question 2

bleeding time

Answer 2

time required for blood to stop flowing from tiny puncture wound

Question 3

coagulation time

Answer 3

time required for venous blood to clot in a test tube, normal-less than 15 min

Question 4

complete blood count (CBC)

Answer 4

determination of numbers of blood cells, hgb concentration, hct, and red cell values (MCH

Question 5

erythrocyte sedimentation rate (ESR)

“Sed Rate”

Answer 5

speed at which erythrocytes settle out of plasma. Increase with infection, inflammation, tumor, which increase fibrinogen content of the blood

Question 6

hematocrit (Hct)

Answer 6

percentage of erythrocytes in a volume of blood

Question 7

hemoglobin test (H, Hg, Hgb, HGB)

Answer 7

total amount of hemoglobin in a sample of peripheral blood

Question 8

platelet count

Answer 8

number of platelets per cubic millimeter of blood, normal- 150,000 to 350,000

Question 9

prothrombin time (PT)

Answer 9

test of the ability of blood to clot, factor II

Question 10

partial thromboplastin time (PTT)

Answer 10

check for other clotting factors, ability of blood to clot

Question 11

red blood cell count (RBC)

Answer 11

number of erythrocytes per cubic millimeter, normal -4 to 6 million

Question 12

red blood cell morphology

Answer 12

microscopic exam of stained blood smear to determine the shape of individual cells

Question 13

white blood cell count

Answer 13

number of leukocytes per cubic millimeter, normal- 5,000 to 10,000

Question 14

white blood cell differential (count)

Answer 14

percentage of different types of leukocytes in blood

Question 15

apheresis

Answer 15

separation of blood into component parts and removal of a select portion from the blood