For plasma and platelet transfusions the framework is turned around: AB positive is the widespread platelet benefactor type while both AB positive and AB negative are general plasma contributor types. The benefactor is additionally examined and made explicit inquiries about their medicinal history to ensure that donating blood is not risky to their health. The security of donating blood during pregnancy has not been concentrated completely, and pregnant ladies are normally conceded until about a month and a half after the pregnancy. Elderly donors are once in a while likewise conceded on age alone as a result of health concerns. Donors are screened for health risks that could make the donation perilous for the beneficiary. Since the gave blood might be given to pregnant ladies or a ladies of youngster bearing age, donors taking teratogenic (birth deformity causing) prescriptions are conceded.