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 ...

Parents often ask about blood tests during routine pediatric visits, but pediatrician Cindy Gellner, MD, clarifies that healthy children rarely need them. She shares some of the criteria for ...

Blood tests can help diagnose and monitor systemic lupus erythematosus (SLE). These include tests for antinuclear antibodies (ANAs), anti-double-stranded DNA (anti-dsDNA) antibodies, and more. While ...

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 ...

In medicine, a person’s blood-test results are compared with the average range in a population. But results are highly individual and tightly regulated around a person’s own stable values. Changes to ...

Dr. Omar Al-Heeti is an assistant professor of medicine at Southern Illinois University and practices internal medicine with a specialty in infectious diseases. He received his medical degree from the ...