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The donor's hematocrit or hemoglobin level is tested to make sure that the loss of blood will not make them anemic, and this check is the most common reason that a donor is ineligible. [34] Accepted hemoglobin levels for blood donations, by the American Red Cross, is 12.5g/dL (for females) and 13.0g/dL (for males) to 20.0g/dL, anyone with a ...
Since the machine used to perform the procedure uses suction to draw blood out of a donor's body, some people who can give whole blood may have veins too small for platelet donation. Blood accounts for about 8% of body weight, so a 50 kg (110 lb) donor has about four liters of blood.
Tips to consider before donating blood. You can donate blood every eight weeks if you are giving whole blood (about a pint) and every 16 weeks if you are giving a Power Red donation (about two pints).
For apheresis platelet donation the donor's pre platelet count should be above 150 x 10^9/L. For apheresis plasma donation, the donor's total protein level should be greater than 60 g/L. For double red cell apheresis, donors of either gender require a minimum hemoglobin level of 14.0 g/dl. [16]
Book a time to give lifesaving blood or platelets now by visiting RedCrossBlood.org, calling 1-800-RED CROSS or by using the Red Cross Blood Donor App. Those who come to give April 8-28 will ...
The blood may also be irradiated, which destroys the DNA in the white cells and prevents graft versus host disease, which may happen if the blood donor and recipient are closely related, and is also important for immunocompromised patients. Other modifications, such as washing the RBCs to remove any remaining plasma, are much less common.
You can donate as often as twice per week with at least two days in between donations at most private donation centers. This is possible because blood plasma regenerates every 24-48 hours.
The ARC provides about 35% of transfused blood in the US. [1] America's Blood Centers (ABC), North America's largest network of non-profit community blood centers. [2] Most of the independent blood centers on this list are ABC members, and these account for approximately 60 percent of the U.S. blood supply. [3]
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