Which of the following red cell indices support macrocytic normochromic red cell morphology?
MCV (fL) MCH (pg) MCHC (g/dL)
a. 120 36 35
b. 68 22 28
c. 90 30 34
d. 75 30 34
ANS: A
The red cells are large but have a normal concentration of hemoglobin. The MCV and MCH must therefore be above reference range, whereas the MCHC is in the reference range.
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