Red Cell Distribution Width (RDW) - Diseases & Conditions - Medscape Reference
Of note, since RDW-CV is mathematically derived from MCV, it is therefore affected by the average RBC size (MCV). RBC size distribution histogram from a Sysmex SE-2100 analyzer from a subject with an MCV of 81.4 fL, RDW-SD of 38.2 fL, and RDW-CV of 12.8 ....