A woman at 39 weeks of gestation with a history of preeclampsia is admitted to the labor and birth unit.She suddenly experiences increased contraction frequency of every 1 to 2 minutes,dark red vaginal bleeding,and a tense,painful abdomen.Which clinical change does the nurse anticipate?

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Uterine tenderness in the presence of increasing tone may be the earliest sign of abruptio placentae.Women with preeclampsia are at increased risk for an abruption attributable to decreased placental perfusion.Eclamptic seizures are evidenced by the presence of generalized tonic-clonic convulsions.Uterine rupture exhibits hypotonic uterine activity,signs of hypovolemia,and,in many cases,the absence of pain.Placenta previa exhibits bright red,painless vaginal bleeding.

A Woman at 39 Weeks of Gestation with a History