HPSSC - 2015
Obstetrics & Gynaecology
Easy

The uterus becomes a pelvic organ after delivery in?

Appeared in: HPSSC - 2015

Explanation

  • After delivery, the uterus undergoes involution, shrinking and descending back into the pelvis.
  • The uterine fundus typically descends at a rate of about 1 centimeter (one fingerbreadth) per day.
  • Immediately after birth, the fundus is at the umbilicus. By about 10 to 12 days, it has descended below the pelvic brim and is no longer palpable abdominally, thus becoming a pelvic organ again.
  • This timeline corresponds to the rapid decrease in uterine weight, from about 1000g at delivery to 300g by 2 weeks.

Why Other Options Were Wrong

  • Option A: This timeframe is too late for normal uterine involution. By 18-20 days, the uterus should have been a pelvic organ for over a week.
  • Option B: This is also too late for a normal involution process. The uterus is typically not palpable above the symphysis pubis after day 12.
  • Option C: While the uterus is a pelvic organ during this period, the transition from an abdominal to a pelvic organ typically occurs slightly earlier, by day 10-12.

Related Visual

Visual explanation — Related Visual
Clinical Relevance
  • Nursing practice connection: Safe nursing care depends on performing Postpartum uterine involution timeline in the correct sequence, documenting the action clearly, and monitoring for the expected response.
  • Regularly assessing fundal height, position, and tone is a critical nursing responsibility in the postpartum period to monitor for normal involution and identify risks for postpartum hemorrhage.
  • A uterus that is boggy (soft) and higher than expected for the postpartum day is a classic sign of uterine atony, the leading cause of postpartum hemorrhage. The first nursing action is to massage the fundus until it is firm.
  • A fundus displaced from the midline is often caused by a full bladder, which prevents the uterus from contracting effectively. Assisting the patient to void or catheterizing if necessary can resolve this and reduce bleeding risk.
How to Approach the Question
  • Identify the question as a factual recall question about a specific physiological timeline in the postpartum period.
  • Recall the process of uterine involution after childbirth.
  • Remember the standard rate of fundal descent, which is approximately 1 cm or one fingerbreadth per day.
  • Calculate the approximate time it would take for the fundus to descend from the umbilicus (its location immediately postpartum) into the pelvis, making it non-palpable abdominally.
  • Select the option that best matches this calculated timeline (around 10-12 days).
Concept Tested & Keywords
  • Concept Tested: Postpartum uterine involution timeline
  • Stem keywords: uterus, pelvic organ, after delivery
  • Lead-in keywords: in?

Question ID

QHwghbr6lf2whzob2s2-vW

Reference Book

E6 Obstetrics Williams p. 44-62

Practise the full HPSSC - 2015

Attempt every question from this paper in a timed mock, then review the full solution for each one.