All of the following will be invalid when lipemia is present in a blood sample except:
a. MCHC
b. MCV
c. MCH
d. Hemoglobin
ANS: B
When a blood sample is lipemic, the hemoglobin is falsely elevated. The MCH and MCHC are also falsely elevated because they use the hemoglobin measurement for their calculation. The MCV is valid because it does not depend on the hemoglobin measurement.
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