Obstetrics and Gynecology

A $24$-year-old woman, gravida $1$, para $0$, presents to the clinic for a scheduled prenatal visit at $16$ weeks gestation. She reports feeling well and has recently begun to notice fetal movement. Her pre-pregnancy body mass index was $21 \text{ kg/m}^2$. Vital signs include a blood pressure of $106/66 \text{ mm Hg}$ and a heart rate of $82/\text{min}$. Physical examination reveals a fundal height palpable midway between the pubic symphysis and the umbilicus. Routine laboratory testing yields the following results:

Blood urea nitrogen: $6 \text{ mg/dL}$
Serum creatinine: $0.5 \text{ mg/dL}$
Hemoglobin: $11.2 \text{ g/dL}$
Urinalysis: $1+$ glucose, negative for protein, negative for nitrites

Which of the following physiologic adaptations best explains this patient's laboratory findings?

Match each clinical presentation occurring during the puerperium with its most likely underlying diagnosis.

Review the clinical scenarios detailing specific presentations and histopathologic findings of various gynecologic neoplasms. Match each patient vignette with the most appropriate primary serum tumor marker used for disease surveillance.

A 28-year-old woman presents to the clinic reporting an absence of menses for the past six months. Her menstrual cycles were previously regular, occurring every 28 days and lasting 5 days. Her body mass index is 23 kg/m². She has no significant past medical history, takes no medications, and uses condoms for contraception. Vital signs are within normal limits. Physical examination reveals normal breast development and female hair distribution. There is no galactorrhea, hirsutism, or thyromegaly. Place the following diagnostic steps in the most appropriate chronological sequence for the initial evaluation of this patient's secondary amenorrhea.

A 34-year-old nulliparous woman is evaluated in the clinic after a routine Papanicolaou (Pap) smear demonstrates a high-grade squamous intraepithelial lesion (HSIL). She has no significant past medical history, and her previous Pap smears were normal. She wishes to preserve her fertility. Arrange the following clinical steps in the most appropriate chronological sequence for the diagnosis, definitive management, and surveillance of this patient according to standard clinical guidelines.

Match the following physiological mechanisms of normal pregnancy with their expected clinical or laboratory manifestations.

A $63$-year-old G2P2 woman presents to the clinic reporting vaginal dryness, dyspareunia, and two episodes of light vaginal spotting over the last month. She attained menopause at age $51$. Medical history is significant for hypertension and osteoarthritis. Vital signs are within normal limits. Pelvic examination reveals thin, pale, and friable vaginal mucosa with diminished rugae. No cervical or vulvar lesions are visualized. Bimanual examination reveals a small, mobile uterus and no adnexal masses. A transvaginal ultrasound performed in the office shows a homogeneous endometrial stripe with a thickness of $7\text{ mm}$ and normal bilateral ovaries. Which of the following is the most appropriate next step in the management of this patient?

Match each clinical presentation of a lower genital tract infection with the most appropriate corresponding microscopic or diagnostic laboratory finding.

A 29-year-old woman comes to the clinic reporting a bothersome, malodorous vaginal discharge for the past week. She describes the odor as "fishy" and notes that it becomes more pronounced after unprotected sexual intercourse. She has a new male sexual partner. The patient denies any vulvar itching, burning, dysuria, or lower abdominal pain. Her medical history is unremarkable, and she takes no medications. Vital signs are within normal limits. Pelvic examination reveals a thin, homogeneous, grayish-white discharge evenly coating the vaginal walls. There is no vulvovaginal erythema, cervical motion tenderness, or adnexal tenderness. The vaginal fluid pH is 5.5. Addition of 10% potassium hydroxide to the vaginal discharge produces a strong amine odor. Microscopic evaluation of a wet mount preparation reveals squamous epithelial cells whose borders are obscured by adherent coccobacilli. Which of the following is the most appropriate next step in management?

Match each clinical presentation during a prenatal visit to the most appropriate next step in management or indicated evaluation.

A series of afebrile patients with stable vital signs present to the gynecology clinic evaluating for abnormal vaginal discharge and discomfort. Match each patient's specific clinical context and diagnostic findings with the most accurate diagnosis and its corresponding guideline-concordant management.

Match each classic clinical presentation of postpartum hemorrhage to its most likely underlying etiology.

A 23-year-old woman presents to the clinic with a 4-day history of a copious, malodorous vaginal discharge and mild vulvar itching. She is sexually active with a new male partner and uses oral contraceptive pills consistently. Her temperature is 37.1°C (98.8°F), blood pressure is 110/70 mmHg, and pulse is 76/min. Pelvic examination reveals a frothy, yellow-green discharge in the vaginal vault and punctate macular hemorrhages on the cervix. Vaginal pH is measured at 6.0. Wet mount microscopy demonstrates numerous motile, flagellated organisms slightly larger than polymorphonuclear leukocytes. Which of the following is the most appropriate pharmacotherapy for this patient?

A 32-year-old G3P3 at 39 weeks gestation experiences brisk, continuous vaginal bleeding immediately following an uncomplicated spontaneous vaginal delivery of a 4,300 g (9 lb 8 oz) neonate. The placenta delivers spontaneously and appears intact. On physical examination, the uterus is soft, boggy, and palpated above the umbilicus. Vital signs show a blood pressure of 90/55 mmHg and a heart rate of 118/min. Two large-bore intravenous lines are established, fluid resuscitation is initiated, and a Foley catheter is placed to empty the bladder.

Arrange the following interventions in the correct escalating sequence for the management of postpartum hemorrhage secondary to uterine atony, assuming continued bleeding at each step and no medical contraindications.

A 58-year-old female presents to the clinic to discuss the results of recent imaging. Two weeks prior, she reported a single episode of blood-tinged vaginal discharge. She underwent menopause at age 50 and takes no medications. A transvaginal ultrasound was subsequently ordered, which demonstrates an endometrial stripe thickness of $9$ mm. Today, her vital signs are within normal limits. Speculum examination reveals a normal-appearing cervix with no active bleeding. Which of the following is the most appropriate next step in the management of this patient?

Match the following gynecologic infections with their classic clinical and laboratory findings.

A 23-year-old G1P0 woman at 39 weeks gestation is evaluated in the labor unit. She is currently 6 cm dilated and 90% effaced. The fetus is in a vertex presentation at 0 station. Continuous external fetal monitoring reveals a baseline heart rate of 145/min with moderate variability. During the assessment, recurrent gradual decelerations to 130/min are noted. The onset, nadir, and recovery of each deceleration exactly coincide with the beginning, peak, and end of the mother's uterine contractions, respectively. Which of the following is the most appropriate next step in the management of this patient?

Match each patient's clinical presentation of secondary amenorrhea with the most likely underlying pathophysiological mechanism.

Match the following fetal heart rate (FHR) monitoring patterns observed during labor to their classic underlying pathophysiologic etiologies.

Evaluate the following patient scenarios involving severe pregnancy-related complications and pair each clinical presentation with its most accurate diagnostic condition.