Flying blind: the making of EMF policy.
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Biomedical subjects
Publications and source records attributed to R Pool.
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Intrapartum hepatitis B surface antigen testing was performed on all laboring patients admitted to Forsyth Memorial Hospital in Winston-Salem, North Carolina from December, 1988 through November, 1989. Of the 5580 patients tested, eight patients had test results positive for hepatitis B surface antigen (overall prevalence rate of 0.14%). HBsAg was present in 0.3% of public patients and 0.08% of private patients. Of the seven patients who were not known to be positive for hepatitis B surface antigen before pregnancy, three had identifiable risk factors for hepatitis B virus. The time interval from birth to administration of hepatitis B immune globulin in the newborn averaged 13.3 hours. Patient cost per new case detected was $13,203. Intrapartum hepatitis B surface antigen screening with an assay performed once daily allows for timely administration of hepatitis B immune globulin to the newborn in accordance with recommendations of the American College of Obstetricians and Gynecologists, although some newborns receive hepatitis B immune globulin after the 12-hour birth-to-administration interval recommended by the Centers for Disease Control.
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A patient with a partial hydatidiform mole, who had a coexistent normal fetus, is described. The pregnancy proceeded to term and ended in the spontaneous, vaginal delivery of a normal baby. The placenta showed areas of macroscopic cystic degeneration with the histological features of hydatidiform mole.
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