Question

Difficulty: MediumLabor, Delivery, and Puerperium

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

  • Excessive postpartum vaginal bleeding accompanied by a soft, poorly contracted uterus palpated above the umbilicus.Uterine atony
  • Profound postpartum hemorrhagic shock, an absent uterine fundus on abdominal palpation, and a smooth mass in the vaginal canal.Uterine inversion
  • Severe, escalating perineal pain following an operative vaginal delivery, accompanied by a firm uterus and a tense, purplish paravaginal swelling.Vaginal hematoma
  • Fever, diffuse lower abdominal pain, and purulent, malodorous lochia developing 72 hours following a cesarean delivery.Postpartum endometritis

Answer

The clinical presentations match their respective postpartum complications based on characteristic physical exam findings: a boggy uterus indicates uterine atony, an absent abdominal fundus indicates uterine inversion, severe perineal pain with a paravaginal mass indicates a vaginal hematoma, and fever with uterine tenderness indicates postpartum endometritis.
Each postpartum complication presents with distinct, recognizable clinical findings. Uterine atony is characterized by a failure of the myometrium to contract, resulting in a soft, boggy uterus and heavy bleeding. Uterine inversion involves the fundus collapsing into the endometrial cavity, presenting with rapid shock, a vaginal mass, and an unpalpable fundus abdominally. Vaginal hematomas result from vessel injury during delivery, causing severe localized pain and swelling with a normal uterine tone. Postpartum endometritis is a polymicrobial infection manifesting as fever, uterine tenderness, and foul-smelling lochia typically 2 to 3 days after delivery.

Step-by-Step Solution

1
Analyze the first presentation (heavy bleeding, soft enlarged uterus).
Identified as impaired myometrial contractility.
This leads directly to the diagnosis of uterine atony.
2
Evaluate the second presentation (absent abdominal fundus, vaginal mass, shock).
Identified as mechanical collapse of the uterine fundus into the endometrial cavity.
This physical exam triad is uniquely diagnostic of uterine inversion.
3
Assess the third presentation (severe perineal pain, tense mass, firm uterus).
Localized the pathology to a vascular injury in the vaginal vault.
This distinguishes it from uterine sources of bleeding and confirms a vaginal hematoma.
4
Examine the fourth presentation (fever, tender uterus, malodorous lochia post-cesarean).
Identified as an ascending polymicrobial infection of the uterine lining.
This timeline and symptom cluster is diagnostic of postpartum endometritis.

Key Concept

Major postpartum complications can be accurately differentiated by targeted physical examination findings, specifically uterine tone, fundal location, localized perineal swelling, and signs of infection.
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