Why would RDW-SD be high?

High results If your RDW is too high, it could be an indication of a nutrient deficiency, such as a deficiency of iron, folate, or vitamin B-12. These results could also indicate macrocytic anemia, when your body doesn’t produce enough normal red blood cells, and the cells it does produce are larger than normal.

Is high RDW-SD bad?

Red cell distribution width (RDW) has recently been associated with the risk of cardiovascular disease and all-cause mortality. The underlying mechanisms remain unresolved, but high levels of RDW may be caused by inflammation or poor nutritional status.

What is the normal range for RDW-SD?

36-47 fL
In adults, the reference range of RDW-SD is 36-47 fL. Normally, red cells are uniform in size and a single narrow Gaussian-type histogram is produced.

What does RDW-SD mean in a blood test?

If your red blood cells are larger than normal, it could indicate a medical problem. Other names: RDW-SD (standard deviation) test, Erythrocyte Distribution Width.

How can I lower my red blood cells naturally?

Treatment

1. Exercise to improve heart and lung function.
2. Eat less red meat and iron-rich foods.
3. Avoid iron supplements.
4. Keep yourself well hydrated.
5. Avoid diuretics, including coffee and caffeinated drinks.
6. Stop smoking, especially if you have COPD or pulmonary fibrosis.

Is low RDW-SD bad?

Low RDW. A low value indicates that your red blood cells are uniform in size. This is desirable and not a cause for concern [3]. However, it is still possible to have a blood-related disease and low RDW levels [3].

Does RDW 16.3 mean?

High RDW (>16.3%) was associated with anemia (77% versus 36%, p<0.001) and heart failure (50% versus 31%, p<0.001) (Table 2).

Is low RDW SD bad?

What is considered high RDW-SD?

A high RDW means you have both very small and very large red blood cells. You may also have a “normal” RDW. A normal RDW range is 12.2%–16.1% for women and 11.8%–14.5% for men. But that doesn’t always mean you’re in perfect health.

What is considered high RDW?

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.

What happens if RDW SD is low?

Instead, it refers to the difference in size from your largest to your smallest red blood cell. A low RDW means your red blood cells are all about the same size. A high RDW means you have both very small and very large red blood cells. You may also have a “normal” RDW.