A red blood cell (RBC) count measures the number of red blood cells in a sample of blood. It is part of a battery of tests called a complete blood count (CBC) that measures the different types and ...

Laboratory reference ranges reflect methods, populations, and policies, and experienced clinicians interpret them in context rather than applying fixed cutoffs theoretically.

A complete blood count (CBC) is a common test to diagnose anemia by measuring red blood cell count, hemoglobin, and hematocrit levels. Iron deficiency is a common cause of anemia, and doctors may ...

This article was reviewed by Darragh O’Carroll, MD. Understanding Blood Tests: How They Work and What They Can Tell You Blood tests are one of the … ...

Deb Hipp is a freelance health and medical writer and editor who lives in Kansas City, Missouri. She is a former investigative reporter with more than 25 years of experience as a journalist and writer ...

What Is a RDW Blood Test? An RDW blood test – also known as a red blood cell distribution width blood test – is a measure of the difference in your red blood cells’ size and volume. RDW is one part of ...

Jay N. Yepuri, MD, MS, FACG, is a board-certified gastroenterologist and member of the Digestive Health Associates of Texas Board of Directors and Executive Committee. A liver function test checks how ...