Blood Drop Composition: Approximate Cell Counts
A single drop of blood (approximately 50 µL) contains roughly:
- Red Blood Cells (Erythrocytes): ~5 million
- White Blood Cells (Leukocytes): 10,000–20,000
- Platelets (Thrombocytes): ~250,000
These values are averages; actual counts vary by individual health, altitude, hydration, and other factors.
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