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Understand a lab test

Complete blood count (CBC)

A commonly used blood test that measures several types of blood cells.

A CBC reports measurements related to red blood cells, white blood cells and platelets. The reason for ordering it and the meaning of results depend on the person's clinical context. Reference ranges may differ between laboratories.

Based on trusted references

Last reviewed: 9 September 2026   ·   Content version: 1.0

References

This is general educational information, not a diagnosis or a substitute for clinical assessment. NestCare is not an emergency service.