Wallach's Interpretation of Diagnostic Tests: Pathways to Arriving at a Clinical Diagnosis (1069 page)

   Interpretation

Decreased In

   Microcytic and normocytic anemias

Increased In

   Macrocytic anemias and hereditary spherocytosis

   Infants and newborns

MEAN CORPUSCULAR VOLUME (MCV)
*

   Definition

   MCV represents the average measurement of RBC volume. It is measured directly by automated instruments but calculated as Hct divided by RBC count with manual methods.

   
Normal range:
82.0–101.0 fL.

   Use

   MCV is helpful in the classification of anemias.

   Interpretation

Increased In

   Macrocytic anemias

   Myelodysplastic syndromes

   Alcoholism

   Liver diseases