Warning signs of preeclampsia, a complication of pregnancy that often forces a premature delivery, are revealed through blood tests (SN: 5/10/03, p. 293: Available to subscribers at Preeclampsia Progress: Blood test for predicting pregnancy problems; 2/14/04, p. 100: Available to subscribers at Pregnancy Alert: Proteins may predict preeclampsia). Scientists now report that testing a woman’s urine for falling concentrations of a hormone called placental growth factor (PlGF) can also tip off doctors to preeclampsia.
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