Red blood cell count (RBC)
What it measures
This measures the number of oxygen-carrying red blood cells in a given volume of your blood.
Often reported in x10^12/L. Reference ranges differ between laboratories, ages and sexes, so always compare with the range printed on your own report.
Why it matters
It's typically interpreted together with hemoglobin and hematocrit rather than alone, since the three tend to move together.
Questions worth asking
- How does this fit with my hemoglobin and hematocrit results?
- Could altitude, hydration, or smoking be relevant here?
- Is further testing needed, or is this within my normal pattern?
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Educational information only. Not a diagnosis, not treatment advice, and not a substitute for a licensed healthcare professional.