What Is RDW-CV?

Q:
What is RDW-CV?

A:
RDW-CV is part of the result of RDW test.

First, RDW test, short for red blood cell distribution width, measures the volume and size of red blood cells. As for the RDW result, it could be presented as RDW-SD number and RDW-CV number.

The former, RDW-SD, is an actual measurement, while the latter, RDW-CV, involves calculations.

More detailed, RDW-CV uses the standard deviation of RDW-SD and the MCV (mean corpuscular volume) number.

The formula is: RDW-CV = (standard deviation of MCV ÷ MCV) × 100.

The histogram below is a good explanation.

Keywords: RDW-CV; RDW-SD; RDW.

* The Content is not intended to be a substitute for professional medical advice, diagnosis, or treatment. Always seek the advice of your physician or other qualified health provider with any questions you may have regarding a medical condition.