RDW-CV Percent
Compute red cell distribution width CV from RBC volume standard deviation and MCV.
Description
Compute red cell distribution width CV from RBC volume standard deviation and MCV.
RDW-CV Percent is a focused biology tool that compute red cell distribution width CV from RBC volume standard deviation and MCV. It calculates locally from the values you enter and exposes the result without changing the source observations.1
When to use RDW-CV Percent
Use RDW-CV Percent when you need to compute red cell distribution width CV from RBC volume standard deviation and MCV. Enter RBC volume standard deviation and Mean corpuscular volume using the definitions and units below so the result can be reproduced.
- RBC volume standard deviation
- A finite measured or assumed value greater than or equal to 0, expressed in fL.
- Mean corpuscular volume
- A finite measured or assumed value greater than or equal to 5e-324, expressed in fL.
How RDW-CV Percent calculates the result
The published tool contract uses this rule: Compute red cell distribution width CV from RBC volume standard deviation and MCV.1
- Red cell distribution width CV
- The calculated red cell distribution width cv in %.
Limitations of RDW-CV Percent
The calculation does not propagate measurement uncertainty, sampling error, or biological and chemical variability.
Alternative or Complementary measurements
Retain the original RBC volume standard deviation and Mean corpuscular volume values and their units alongside the result. MCV Cross Check is useful when you instead need to cross check a reported MCV against the computed mean corpuscular volume hematocrit x 10 / RBC and flag agreement within two femtolitres. Red Cell Mass mL provides another view by helping you compute the red cell mass as blood volume times the hematocrit fraction.
References
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Red blood cell distribution width — Wikipedia contributors
Similar or alternative tools
- MCV Cross Check
Cross check a reported MCV against the computed mean corpuscular volume hematocrit x 10 / RBC and flag agreement within two femtolitres.
- Red Cell Mass mL
Compute the red cell mass as blood volume times the hematocrit fraction.
- Red Cell Concentration
Convert cells counted in a hemocytometer square into a red cell concentration in millions per microliter using countedCells x dilutionFactor / 10.