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How much blood is drawn?

April 26, 2017blood drawn

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How much blood is drawn?

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For Dogs: We take a full human pint, which is 450 mLs. It is safe for a 55+ pound dog to donate this amount of blood because they hold this volume of blood in reserve in the spleen. After about 4 weeks all that blood has been replaced back into the body, and after 6 weeks it is safe for the dog to donate again because the reserve volume has been replaced in the spleen. For Cats: We take 53mLs from feline donors. Cats also have this amount of blood in reserve, but because they are so small we make sure to replace that volume of fluid after each donation with subcutaneous fluids.