A Complete Blood Count (CBC) normal range varies slightly depending on the specific component being measured and can differ between males and females. Here's a breakdown of the typical normal ranges for the key components of a CBC, based on the provided reference:
Normal Ranges for CBC Components
The following table outlines the normal ranges for different blood components measured in a Complete Blood Count (CBC). These ranges may vary slightly depending on the laboratory performing the test.
| Blood component | Abbreviation used | Reference range |
|---|---|---|
| White blood cells | WBC | 4,500-11,000/mm3 |
| Red blood cells | RBC | Male: 4.3-5.9 million/mm3 Female: 3.5-5.5 million/mm3 |
| Hemoglobin | HGB | Male: 13.5-17.5 g/dL Female: 12.0-16.0 g/dL |
| Hematocrit | HT | Male: 41%-53% Female: 36%-46% |
Key CBC Components Explained:
- White Blood Cells (WBC): These are part of the immune system, fighting off infections. The normal range is between 4,500 and 11,000 cells per cubic millimeter (mm3).
- Red Blood Cells (RBC): These carry oxygen throughout the body. Normal ranges differ by sex:
- Males: 4.3 to 5.9 million cells per mm3
- Females: 3.5 to 5.5 million cells per mm3
- Hemoglobin (HGB): This is the protein in red blood cells that carries oxygen. Normal ranges also differ by sex:
- Males: 13.5 to 17.5 grams per deciliter (g/dL)
- Females: 12.0 to 16.0 g/dL
- Hematocrit (HT): This measures the proportion of red blood cells in the blood. Normal ranges are:
- Males: 41% to 53%
- Females: 36% to 46%
Important Considerations
- Individual Variation: Normal ranges can vary slightly based on age, altitude, and other individual factors. Always discuss your specific results with your doctor.
- Interpretation: Results outside these ranges don't always indicate a problem but should be evaluated by a healthcare professional.
- Comprehensive Evaluation: A CBC is just one part of a complete health assessment, often combined with other tests for a thorough diagnosis.
