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 ...

A normal platelet count is between 150,000 to 450,000 per microliter (mcL) of blood. This range is generally applicable to all adults. However, research has suggested that normal platelet counts might ...