Lecture 9

Question 1

which RBC indices are related to colour

Answer 1

MCH and MCHC

Question 2

which RBC indices are related to size

Answer 2

MCV and RDW

Question 3

mean cell volume (MCV)

Answer 3

• avg volume of RBC
• RR 80-96fL

MCV = Hct/RBC x1000

Question 4

mean cell hemoglobin (MCH)

Answer 4

• avg amount of Hgb in RBCs in a given sample by weight
• RR 28-32 pg

MCH = Hgb/RBC

Question 5

MCH is also affected by:
a) MCV
b) RDW
c) MCHC
d) none of the above

Answer 5

a) MCV

as MCV increases, MCH increases

Question 6

mean cell hemoglobin concentration (MCHC)

Answer 6

• avg amount of Hgb in RBC in given sample by []
• 320-360g/L

MCHC = Hgb/Hct