Obstetrics and Gynecology

A 29-year-old nulligravid woman comes to the office due to a 6-month history of absent menstrual periods. Menarche occurred at age 12, and her menses were previously regular, occurring every 28 to 30 days. For the past several months, she has also noticed a bilateral milky nipple discharge that stains her undergarments. The patient reports feeling unusually sluggish, experiencing generalized muscle aches, and having difficulty concentrating at her desk job. She has gained 5 kg (11 lb) over the past year despite no change in her dietary habits. She has no chronic medical conditions and takes no medications. Vital signs include a blood pressure of 110/70 mm Hg, a pulse of 58/min, and a respiratory rate of 14/min. Her body mass index (BMI) is 26 kg/m². Physical examination reveals pale, cool skin and delayed relaxation of the deep tendon reflexes. A urine pregnancy test is negative.

Laboratory results are as follows:

Which of the following is the most appropriate next step in management?

An obstetrics triage nurse evaluates a primigravid patient at 40 weeks and 2 days gestation. The patient was admitted earlier in the day for an elective labor induction and is currently receiving an intravenous infusion of oxytocin. She reports severe, sharp pain with each contraction, and monitoring shows contractions occurring every 2.5 minutes on average. Vital signs include a blood pressure of 118/76 mm Hg, heart rate of 88/min, and respiratory rate of 18/min. To investigate a complaint of mild shortness of breath, an arterial blood gas on room air is drawn, demonstrating a pH of 7.44, PaCO₂ of 28 mm Hg, and PaO₂ of 102 mm Hg.

A continuous fetal heart rate monitor displays a baseline rate of 140/min accompanied by moderate variability. However, the tracing also reveals recurrent, symmetric decreases in the heart rate to a nadir of 120/min. The onset of each decrease is gradual, taking roughly 40 seconds to reach its lowest point. Notably, the nadir of each deceleration occurs consistently after the peak of the corresponding uterine contraction, returning to baseline only after the contraction ends. These specific decelerations are present following 60% of the recorded contractions. Pelvic examination confirms the cervix is 5 cm dilated and 90% effaced, with the fetal head at 0 station.

Based on these findings, which of the following is the most appropriate next step in management?

A couple with severe male-factor infertility due to oligozoospermia is preparing for their first treatment cycle using assisted reproductive technology. During the informed consent process, the reproductive endocrinologist details the timeline of the procedure to ensure the patients understand the clinical commitment required. Arrange the following clinical and laboratory steps of an in vitro fertilization (IVF) cycle in their correct chronological sequence, from the initiation of the treatment cycle to its completion.

A $27$-year-old gravida $3$, para $2$ at $38$ weeks and $4$ days of gestation is in the labor unit undergoing induction for gestational diabetes. Uterine contractions are being augmented with a continuous infusion of a synthetic nonapeptide hormone. The continuous electronic fetal monitor demonstrates a baseline heart rate of $145$ /min with absent variability. Over the last $30$ minutes, the patient has experienced $16$ contractions. During this same timeframe, the fetal tracing displays recurrent, gradual decreases in heart rate that reach their nadir strictly after the peak of the corresponding contraction. The nursing staff immediately places the patient in the left lateral decubitus position, administers a $500$ mL intravenous bolus of lactated Ringer solution, and halts the uterotonic infusion. Ten minutes later, the patient continues to experience contractions every $90$ to $120$ seconds, and the fetal heart rate pattern remains unchanged. The patient's blood pressure is $118/76$ mm Hg and pulse is $88$ /min. Cervical examination reveals $5$ cm dilation, $90\%$ effacement, and $-1$ station. Which of the following is the most appropriate next step in the management of this patient?

A reproductive endocrinology clinic is evaluating four male patients for primary infertility. Each patient has confirmed azoospermia on semen analysis but presents with a distinct endocrine laboratory profile and specific physical examination findings. Match the following clinical and laboratory profiles with their most likely underlying etiology.

Match each clinical presentation or ultrasound/pathologic finding of abnormal placentation and bleeding with the corresponding obstetric diagnosis.