MCQ IN MEDICINE

Detailed explanation-1: -Generally, a normal RDW ranges from 12% to 15%, but this number may vary depending on the lab that performs the test. Your results report will highlight what’s considered a normal range so that you can compare your numbers to what’s typical.

Detailed explanation-2: -Normal value for RDW in adults and children is 11.5%-14.5% and for infants is 15.1-16%. Out of total 100 cases RDW was abnormal in 98% cases. In moderate and severe iron deficiency anemia all cases were having RDW in abnormal range while in mild cases of iron deficiency anemia 91.3% cases had abnormal RDW.

Detailed explanation-3: -A high RDW (over 14.5%) means that the red blood cells vary a lot in size. A normal RDW is 11.6 to 14.6%, but researchers from the Intermountain Medical Center Heart Institute found that patients with a RDW level greater than or equal to 12.9% had an increased risk for depression.

Detailed explanation-4: -A low RDW (below 10.2%) means that the red blood cells vary very little in size. One reason for a low RDW level is macrocytic anemia. Macrocytic anemia is a blood disorder in which not enough red blood cells are produced, but the ones that are present are large. Another cause of a low RDW level is microcytic anemia.