[PDF] Role of Red Cell Distribution Width and Mentzer Index in

What is a High RDW?

The RDW can be calculated either as a coeffi cient of variation, with a reference range of 11% to 16% depending on the laboratory, or, less often, as a standard deviation, with a reference range of 39 to 46 fL. high RDW is often found in nutritional de-fi ciencies of iron, vitamin B12, and folate.

What is a normal red blood cell distribution width (RDW)?

A: Example of a normal red blood cell distribution width (RDW) of 13.5% (red line) in a patient with a normal complete blood cell count. B: Example of an increased RDW of 28.8% in a patient with iron de? ciency shortly after initiation of iron supplemen-tation. RED BLOOD CELL DISTRIBUTION WIDTH

What are the requirements to be approved by RDW?

A manufacturer must have and demonstrate active involvement in production processes. Vehicles, systems, components, and technical units which are manufactured by a third party or a legally independent subsidiary company (hereafter called “producing company”) can only be approved by RDW if the following requirements are fulfilled.

Does a higher RDW increase the risk of death?

In a retrospective study of 15,852 adult participants in the Third National Health and Nutrition Examination Survey (1988–1994), a higher RDW was associated with a higher risk of death, with the all-cause mortality rate increasing by 23% for every 1% increment in This correlation is particularly prominent in cardiac disorders.