Alternate Names : Erythrocyte count, Red blood cell count
The general the range is as follows:
- Male: 4.7 to 6.1 million cells per microliter (cells/mcL)
- Female: 4.2 to 5.4 million cells/mcL
Note: Normal value ranges may vary slightly among different laboratories. Talk to your doctor about the meaning of your specific test results.
What do Abnormal Results Mean?
Higher-than-normal numbers of RBCs may be due to:
Your RBC count will increase for several weeks when you move to a higher altitude.
Drugs that can increase the RBC count include:
Lower-than-normal numbers of RBCs may be due to:
- Bone marrow failure (for example, from radiation, toxins, or tumor)
- Erythropoietin deficiency (secondary to kidney disease)
- Hemolysis (RBC destruction) due to transfusion, blood vessel injury, or other cause
- Hemorrhage (bleeding)
- Multiple myeloma
- Nutritional deficiencies of:
Drugs that can decrease the RBC count include:
- Chemotherapy drugs