Should I be concerned about a high RDW value?
Patient: I had a CBC & Diff blood test done. Everything came back within normal ranges except RDW which was 15.3 My doctor didn t even address this because my tsh level was high and that is what she discussed with me. Should I be concerned about the RDW result? Doctor: Hi,Thanks for asking.Based on your query, my opinion is as follows.1. RDW indicates red cell distribution width. It indicates variation in size of the cells.2. If the hemoglobin is normal, not to worry.3. RDW varies with iron deficiency or thalassemia. If hemoglobin is low, it indicates possible etiology. 15.3 is only mild variation. Not to worry.Hope it helps.Any further queries, happy to help again.