What does a low RDW CV indicate?

What if my RDW count is low? A low RDW means that the red blood cells vary little in size. This could be due to the following: Macrocytic anemia. A blood disorder in which not enough RBCs are produced, but the ones that are present are large.

What is the difference between RDW-CV and RDW SD?

What are RDW-SD and RDW-CV markers? RDW-SD and RDW-CV are parameters that are analyzed as part of the red blood cell blood analysis: RDW-CV = Coefficient of Variation. RDW-SD = Standard Deviation.

What does high MCV and high RDW mean?

a high RDW and low MCV suggests iron deficiency or microcytic anemia. a high RDW and high MCV indicates a lack of B12 or folate, macrocytic anemia, or chronic liver disease.

What is RDW CV and RDW SD?

RDW-SD and RDW-CV are parameters that are analyzed as part of the red blood cell blood analysis: RDW-CV = Coefficient of Variation. RDW-SD = Standard Deviation.

What does High RDW mean in a blood test?

Elevated RDW helps provide a clue for a diagnosis of early nutritional deficiency such as iron, folate, or vitamin B12 deficency as it becomes elevated earlier than other red blood cell parameters.

What causes High RDW levels in blood?

Vitamin B-12, or folate, deficiency can cause high RDW. It can also happen if your red blood cells have a life cycle shorter than the normal 120 days. According to Medline Plus, the normal ferritin range is 12 to 300 ng/mL for males and 12 to 150 ng/mL for females.

How do you calculate RDW?

So, the RDW is calculated by dividing the standard deviation of MCV to the mean MCV and then multiplying the result by 100. In case you are wondering what the standard deviation represents, you should know that this is actually the erythrocyte volume or the number of red blood cells that are found in the blood smear.

What are the normal levels of RDW?

According to doctors from the Mayo Clinic, the RDW reference range is 11.8\% to 15.6\%.2 However, some other clinics give the normal reference range for RDW between 11.6\% and 14.6\%. The normal red blood cell distribution width in children will be slightly different.