A multigravid client at 34 weeks' gestation with premature rupture of the membranes tests positive for group b streptococcus. the client is having contractions every 4 to 6 minutes. her vital signs ar

A multigravid client at 34 weeks' gestation with premature rupture of the membranes tests positive for group b streptococcus. the client is having contractions every 4 to 6 minutes. her vital signs are as follows: blood pressure, 120/80 mm hg; temperature, 100°f (37.8°c); pulse, 100 bpm; respirations, 18 breaths/minute. which medication would the nurse expect the primary health care provider (hcp) to prescribe?