Normal red blood cell (RBC) count is:

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Normal red blood cell (RBC) count is:

Normal red blood cell count is the typical range of RBCs in a healthy adult’s blood, expressed as millions per microliter. In adults, the common reference range is about 4.5 to 5.5 million cells per microliter (men roughly 4.7–6.1, women about 4.2–5.4). Among standard options, 4.5–5.5 million/µL best matches this usual reference. Counts lower than this suggest anemia, while higher counts can occur with dehydration or polycythemia.

Normal red blood cell count is the typical range of RBCs in a healthy adult’s blood, expressed as millions per microliter. In adults, the common reference range is about 4.5 to 5.5 million cells per microliter (men roughly 4.7–6.1, women about 4.2–5.4). Among standard options, 4.5–5.5 million/µL best matches this usual reference. Counts lower than this suggest anemia, while higher counts can occur with dehydration or polycythemia.

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