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Dr. Andrew Rynne
MD
Dr. Andrew Rynne

Family Physician

Exp 50 years

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What Does My Blood Test Report Suggest?

My blood test report has following results as outside normal range RED CELL DISTRIBUTION WIDTH - SD(RDW-SD) 48 fL Vs, Normal range 39 - 46 fL RED CELL DISTRIBUTION WIDTH (RDW-CV) 14.7 % s, Normal range11.6-14% PLATELET DISTRIBUTION WIDTH(PDW) 15.7 fL s, Normal range9.6-15.2 fL What these signify?
Fri, 23 Oct 2015
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Pathologist and Microbiologist,  's  Response
Hello and welcome to HCM,
Red cell distribution width (RDW) is a parameter which measures the variation in size of red blood cells.
Red blood cells are of uniform sizes but when RDW is high this signifies a variation in sizes of red blood cells.
In addition to RDW, I suggest you to post other RBC parameters like RBC count, hemoglobin, RBC indices - MCV, MCH and MCHC for better interpretation of RDW.
Similarly Platelet distribution width (PDW) is a parameter which measures the variation in sizes of platelets.
PDW increases when there is variation in sizes of platelets.
Variation in sizes of platelets is seen when variously sized platelets are present as seen in regenerating bone marrow or when there is rapid turn over of new platelets from the bone marrow.
Again PDW will be more informative if you post other parameters like platelet count, mean platelet volume (MPV).

Thanks and take care
Dr Shailja Puri
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What Does My Blood Test Report Suggest?

Hello and welcome to HCM, Red cell distribution width (RDW) is a parameter which measures the variation in size of red blood cells. Red blood cells are of uniform sizes but when RDW is high this signifies a variation in sizes of red blood cells. In addition to RDW, I suggest you to post other RBC parameters like RBC count, hemoglobin, RBC indices - MCV, MCH and MCHC for better interpretation of RDW. Similarly Platelet distribution width (PDW) is a parameter which measures the variation in sizes of platelets. PDW increases when there is variation in sizes of platelets. Variation in sizes of platelets is seen when variously sized platelets are present as seen in regenerating bone marrow or when there is rapid turn over of new platelets from the bone marrow. Again PDW will be more informative if you post other parameters like platelet count, mean platelet volume (MPV). Thanks and take care Dr Shailja Puri