How long does it take to recover from giving blood?

Your body will replace the blood volume (plasma) within 48 hours.

  • It will take four to eight weeks for your body to completely replace the red blood cells you donated. 
  • The average adult has eight to 12 pints of blood. You will not notice any physical changes related to the pint you donated.

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Whole Blood Donations

mskcc.org

  1. Donating blood takes about an hour from the time you arrive until you are ready to leave. First, you must complete a registration form with basic information such as your name, address, and birthdate. You must also present identification that shows your name and your photo or signature.
  2. One of the medical professionals will check your blood pressure, temperature, and hemoglobin level (iron); take a look at your arm to make sure it is clear of any signs of infection or intravenous drug use.
  3. The actual donation takes between ten and 20 minutes.

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You should eat a regular meal and drink plenty of fluids one to two hours before donating blood.

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A skilled, professionally trained staff member will collect your blood. 

Except for a slight sting when the needle is inserted, you should not experience any pain during the donation.

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  • Your body will replace the blood volume (plasma) within 48 hours. 
  • It will take four to eight weeks for your body to completely replace the red blood cells you donated. The average adult has eight to 12 pints of blood. You will not notice any physical changes related to the pint you donated.

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All blood is tested for blood type, hepatitis, HIV (the AIDS virus), HTLV, and syphilis. Then it is separated into components — red blood cells and plasma — to help patients recover from cancer treatment and regain their strength.

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You must wait at least eight weeks (56 days) between donations of whole blood and 16 weeks (112 days) between Power Red donations.

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