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FDA guidelines allow volunteer whole blood donations every 56 days, plateletpheresis donations twice a week up to 24 times a year, plasmapheresis twice a week (as long as total protein and immunoglobulin levels remain adequate) and double red cell collection by apheresis every 112 days.
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How many times a year can a person give blood?
In general, most donation centers allow you to give whole blood every 56 days, which equals about 6 times a year. However, it's important to follow the specific guidelines of the donation center you are visiting, as policies may vary.
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