ANSWERS: 1
  • Yes you do have to be a certain weight according to centralbloodbank.org. You must be at least 110 lbs to donate whole blood. (If you are donating plasma, you must be at least 125 lbs.) (source http://www.centralbloodbank.org/faqs.asp#2) And this restriction seems to be consistent with other blood donor organizations (other general restrictions for blood donors are also provided): * The following guidelines apply when blood sampling in amounts exceeding 200 cc at one time is proposed: o WEIGHT must be greater than 110 lbs (50 kg); o PULSE must be between 50 and 100 beats/minute with no cardiac irregularity; o TEMPERATURE must not exceed 37.55oC or 99.5oF; o CBC should be drawn before sampling (and at the end of the sampling period if relevant; see below). o HEMATOCRIT must be between: 0.36 - 0.48 for females and 0.38 - 0.54 for males; o or HEMOGLOBIN must be between 12.5 and 20; o TOTAL VOLUME from one subject must not exceed 550 cc for any one sample; o THERE MUST BE 8 WEEKS between samples, if multiple samples of 550 cc are required from one subject. (source http://healthcare.partners.org/phsirb/bldsamp.htm)

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