a 28-year-old g1p0 at 37.5 weeks gestation complains of a thin, watery discharge for the last 5 hours. she has soaked 3 pads. she has no pain and the fetus continues to be active. an external fetal monitor reveals heart tones in the 140s, with variability and no contractions. the ph of the vaginal fluids is 8. what is the next best step in the management of this patient? quizlet