section 1

Question 1

define hematology

Answer 1

the study of blood and blood forming tissues

Question 2

define plasma

Answer 2

liquid portion holding water, proteins, salts, and hormones

Question 3

define serum

Answer 3

plasma remaining after a blood clot forms, all same components minus coagulation proteins

Question 4

indicate color and function of EDTA

Answer 4

lavender top for chelating calcium to prevent coagulation

Question 5

indicate color and function of sodium citrate

Answer 5

light blue top for anticoagulation with EDTA can’t be used

Question 6

indicate the color and funciton of heparin

Answer 6

anti coagulant for when EDTA can’t be used, inactivated clotting factor thrombin

Question 7

what are EDTA clumpers, PLT satellites and cold PLT antibodies

Answer 7

• EDTA clumpers: blood clots in presence of EDTA
• PLT satellites: PLTs clump around PMNs in presence of EDTA
• PLT cold antibodies: when blood is cool it will form agglutination

Question 8

define MCV

Answer 8

mean cell volume, the average size of RBCS
MCV(fL)= (hct*10)/RBC

Question 9

define MCH

Answer 9

mean cell hgb, the average weight of hgb per cell
MCH(pg)= (hgb*10)/RBC

Question 10

define MCHC

Answer 10

mean cell hgb concentration, amount of vol occupied by hgb per cell (hypochromia)
MCHC(%)=(hgb/hct)*100

Question 11

define RDW

Answer 11

red cell distribution width, the amount of size variation amongst red cells (anisocytosis)

Question 12

define accuracy

Answer 12

clopse to correct/ true value

Question 13

define precision

Answer 13

reproducibility

Question 14

define reliability

Answer 14

accuracy and precision over time

Question 15

define linearity

Answer 15

mathmatical relationship or funcitn that can be a graphic straight line

Question 16

define sensitivity

Answer 16

true positive

Question 17

define specificity

Answer 17

true negative