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Does donating blood lower hematocrit?

Does donating blood lower hematocrit levels? A phlebotomist explains how a blood draw thins your blood and why medical therapeutic phlebotomy is different.

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Difference between erythrocytosis and polycythemia

Confused by your lab results? A phlebotomist explains the difference between erythrocytosis and polycythemia, the cells involved, and how they are treated.

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Do blood donation centers and blood drives accept patients with hemochromatosis, high hematocrit, or erythrocytosis?

Can you use a regular blood drive for therapeutic phlebotomy? A phlebotomist explains FDA rules, prescription requirements, and easier at-home alternatives.

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