DEAR DR. GOTT: What is the RDW on the blood work I have done at the lab? What does it stand for? My level is high.
DEAR READER: RDW stands for red cell distribution width that essentially measures the size of red blood cells and is a part of a normal complete blood count (CBC) test. CBCs may be ordered as a part of standard lab work during routine physical examination or as part of a blood panel to aid in the determination of a diagnosis.
RDW must be used in conjunction with other levels found via the CBC, or with other blood tests to diagnose anemia and/or to differentiate the various types of anemia.
You don’t mention why you had blood work. Was it part of your yearly exam? Do you currently have a medical problem which requires monitoring? Is your physician attempting to diagnose a current health problem you are experiencing? Beyond that, what is your age? Do you have any health conditions or medical problems? Are you on any medication?
Based on your very brief note I cannot give you any definitive answers. If nothing else on your testing was abnormal, the finding may be of no consequence. If there were other abnormal levels, such as your hemoglobin, red blood cells, etc., your physician may have concerns he wishes to pursue.
You may be in the beginning stages of anemia; most likely iron deficiency anemia, which is the most common form. It is caused when the body doesn’t have enough iron to allow for normal red blood cell production which in turn provides the body’s tissues with oxygen and other nutrients. If you don’t eat red meat, have an otherwise unhealthy or unbalanced diet, simple steps can be taken to reverse the condition such as including daily supplements or simply eating a better variety of foods to include lean meats, fresh fruits and vegetables, whole grains, and low-fat dairy products. Whatever the cause, you need to speak with your physician who is most familiar with your health history. He or she ordered your blood work and is responsible for providing you with the answers you need and want regarding the results.
