Professional and Voluntary Blood

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Abstract
Among professional and voluntary blood donors in Tehran [Iran] HBsAg [hepatitis B surface antigen] carriers and RPR [rapid plasma reagin (syphilis test)] positives were found more frequently in the former group. The levels of Hb, serum total protein and serum immunoglobulins [Ig] G, A and M were significantly lower in commercial blood. Measurement of transferrin saturation showed that 1/3 of professional donors were quite severely Fe deficient. For fractionation purposes the maximum theoretical yield from commercial plasma is 16% less IgG than from plasma of voluntary donors, 21% less total immunoglobulins and 20% less albumin.