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What is a venesection?

venesection
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What is a venesection?

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This simply means the removal of blood. Venesection uses the same technique as blood donation. A needle is put into the vein (in the arm) and roughly 450mls of blood is collected. The doctor will perform this procedure regularly until there is a satisfactory level of blood thickness (haematocrit). The target blood thickness depends on the disease, risk factors, tolerance of the procedure and any previous complications.

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