8/9/2011

Twenty percent of about 18,000 patients admitted for heart attacks had moderate to severe anemia after discharge despite normal initial hemoglobin levels, a study in the Archives of Internal Medicine found. Researchers speculated that the findings were due to blood drawn for routine diagnostic tests, with the risk of anemia increasing by 18% per 50 milliliters of blood taken. Fewer draws using pediatric rather than adult-sized blood tubes would help, said the study's senior author.

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