What is rdw in blood test ? Red Cell Distribution Width

  • By sudha singh
  • at September 04, 2022 -


Red Cell Distribution Width (rdw) is a blood test that is used to determine the severity of anemia. This test is also used to screen for certain types of cancers, and to check for the presence of certain infections.

What is rdw in blood test ?

RDW is a lab test that measures the width of red blood cells. It can be used to detect abnormalities in the blood, such as anemia.

How is rdw measured?

Red Cell Distribution Width (RDW) is a method to measure the size of red blood cells. RDW is calculated by measuring the distance between the center of each red blood cell and the nearest edge of the cell's plasma membrane.

What are the possible causes of decreased rdw?

There are a few potential causes of decreased rdw in a blood test. Some of the most common reasons are outlined below.

1) Reduced red cell production - If the body is not producing enough red cells, the rdw value will decrease. This can be caused by a variety of factors, such as age, health problems, or medications.

2) Increased destruction of red cells - If there is an increased destruction of red cells, the rdw value will decrease. This could be due to some sort of infection, injury, or disease.

3) Irregularity in red cell distribution - If there is an irregularity in red cell distribution, the rdw value will be lower than normal. This could be caused by genetic conditions or abnormalities in the bloodstream.

How can rdw be improved?

RDW is a measure of how well red blood cells are distributed in the blood. It is used to help assess the risk of developing blood clots.


In this article, we will be discussing what rdw is and its importance in blood tests. We will also be looking at the different causes of rdw and what you can do to improve it. Finally, we will give you a few tips on how to raise your rdw levels if they are low. I hope that this article has helped you to understand more about rdw and why it is important in your blood tests. If you have any questions or comments, feel free to leave them below!


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