NBME 18 -DOWNLOAD

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NBME 18 - DOWNLOAD

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20-year old woman at 27 weeks gestation is admitted to the hospital because of a 12-hour history of intense uterine contractions occurring every 8 minutes. her membranes ruptured 32 hours ago.her temperature is 39.1C(102.4F) and pulse is 115/min. Physical examination

shows tenderness of the uterus.pelvic examination shows a closed cervix that is not affected. the fetal heart rate is 210/min. which of the following is the primary stimulus for

her uterine muscle contractions?a.decreased myometrial intracellular calcium.b.direct response to maternal hyperthermia.

c.inflamed maternal decidua release of prostaglandind.maternal adrenocorticosteroid release

e.stresses fetal production and release of oxytocin

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NBME 18 -DOWNLOAD

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