Tubal rupture in ectopic pregnancy causes:

IGNOU PB Bsc Entrance-2022

Obstetrics & Gynaecology

Easy

Appeared in: IGNOU PB Bsc Entrance-2022

Explanation

A ruptured ectopic pregnancy is a medical emergency where the fallopian tube tears, causing rapid internal bleeding into the abdominal cavity (hemoperitoneum).
This accumulation of blood irritates the peritoneum, a sensitive membrane lining the abdomen, resulting in a sudden, severe, sharp, or 'knife-like' pain in the lower abdomen.
The pain is acute and localized, distinguishing it from the dull, stretching pain of an unruptured ectopic pregnancy.
This symptom is a critical indicator of a life-threatening situation requiring immediate surgical intervention.

Option A: Painless vaginal bleeding is the classic sign of placenta previa, a condition where the placenta implants over or near the cervix. While some spotting can occur with ectopic pregnancy, it is typically associated with pain, and painless, profuse bleeding is not characteristic of rupture.
Option B: A continuous, dull, aching pain is characteristic of an unruptured ectopic pregnancy. This pain is caused by the stretching of the fallopian tube as the pregnancy grows, not by the acute event of rupture.
Option C: Intermittent abdominal contractions are associated with uterine activity. They are characteristic of normal labor, Braxton Hicks contractions, or a threatened/inevitable abortion (miscarriage), none of which involve a tubal rupture.

Clinical Relevance

Nursing practice connection: This is primarily an exam-oriented knowledge point with limited direct bedside application, so retain Clinical manifestations of a ruptured ectopic pregnancy as background academic context rather than a clinical decision trigger.
Recognizing the sudden, knife-like pain of a ruptured ectopic pregnancy is critical for nurses, as it signals a life-threatening hemorrhage requiring immediate surgical intervention.
Prompt assessment for signs of hypovolemic shock (tachycardia, hypotension, shoulder tip pain) and rapid escalation to the surgical team can be life-saving.
What if? If the patient reported similar but duller, intermittent pain and had a positive pregnancy test, the nurse should suspect an unruptured ectopic pregnancy and prepare for diagnostic tests like a transvaginal ultrasound and serial hCG levels, rather than immediate surgery.

How to Approach the Question

First, identify the key clinical event in the question stem: 'tubal rupture in ectopic pregnancy'.
Next, analyze the pathophysiology of this event. A 'rupture' implies a sudden, tearing event, which will cause acute and severe symptoms, not gradual or intermittent ones.
Consider the consequence of the rupture: rapid internal bleeding into the peritoneal cavity (hemoperitoneum).
Evaluate the options based on this understanding. 'Sudden knife-like pain' directly corresponds to the acute peritoneal irritation caused by the bleed.
Eliminate other options by associating them with different conditions: painless bleeding with placenta previa, dull pain with an unruptured ectopic, and contractions with labor/miscarriage.

Concept Tested & Keywords

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E6 Obstetrics Williams p. 18-33

E6 Medicine Harrison 22e Part 2 p. 1040-1042