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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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11y ago
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14y ago

Every 6 months.

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Q: How many times a year can you give blood?
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