A 1-hour hCG radioimmunoassay detection kit for the management of suspected ectopic pregnancy

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Abstract
The value of a rapid hCG kit was assessed in 60 patients undergoing laparoscopy or laparotomy for suspected ectopic pregnancy, of whom 30 were subsequently proved to be pregnant. A high degree of specificity (93%) and sensitivity (97%) was found, with 1 false-negative and 3 false-positive results. If the kit had been used as a routine on admission 3 patients would not have been inadvertently discharged before the diagnosis of tubal pregnancy and 27 could have avoided a laparoscopy to exclude tubal pregnancy.

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