What is RDW value in blood?

The RDW (Red Cell Distribution Width) value measures the variation in red blood cell size and helps diagnose anemia and other blood diseases.

The RDW (Red Cell Distribution Width) value is a measure of the variation in the size of red blood cells (erythrocytes) in the blood. It is often expressed as a percentage and is an important parameter in a complete blood count (CBC). The RDW value indicates how much the size of red blood cells in a blood sample varies.

Normal RDW values

Normal reference values for RDW vary somewhat depending on the laboratory, but in general the normal RDW value is between 11.5% and 14.5%.

Importance of RDW values

The RDW value is important because it helps diagnose various medical conditions, including:

1. Anemias:
   • RDW can help differentiate between different types of anemia. For example, an elevated RDW may indicate iron deficiency anemia, vitamin B12 or folate deficiency anemia.
2. Chronic Diseases:
   • In chronic diseases, changes in RDW may indicate underlying problems with red blood cell production or destruction.
3. Bone marrow disorders:
   • Variations in the size of red blood cells may indicate problems in the bone marrow, where red blood cells are produced.

Why RDW values are included in almost all tests from Bloedwaardentest.nl

RDW is a widely used parameter because it provides valuable information about red blood cell health and possible underlying conditions. Almost all blood tests offered by Bloedwaardentest.nl contain the RDW value because of the following reasons:

1. Screening:
   • It helps screen for general health problems and can provide clues for further diagnostic testing.
2. Diagnosis:
   • RDW, along with other blood parameters, helps physicians make an accurate diagnosis.
3. Monitoring:
   • It can be used to monitor the effectiveness of treatments for blood diseases and other conditions.

How is RDW measured?

RDW is measured as part of a complete blood count (CBC). It measures variability in red blood cell size by calculating the standard deviation of red blood cell volumes and dividing this by the mean red blood cell volume (MCV), expressed as a percentage.

Interpretation of RDW Values

• Normal RDW: Indicates that red blood cells are uniform in size, which is usually a sign of healthy blood production.
• Elevated RDW: May indicate variations in red blood cell size, which may indicate iron deficiency, vitamin B12 or folate deficiency, or other hematologic disorders.

In brief

The RDW value is an essential parameter in blood tests and provides important insights into the health and function of red blood cells. It is used in the diagnosis of various types of anemia and other blood diseases, and helps screen and monitor general health conditions. At Bloedwaardentest.nl, the RDW value is included in almost all tests, reflecting the comprehensive and valuable information this parameter provides for medical evaluations and diagnostics. For more information on blood tests and health, visit Bloodvaluestest.co.uk and get a good understanding of your health.