Painful Bleeding at 34 week of gestation

NORCET 1 - 2020

Obstetrics & Gynaecology

Easy

Appeared in: NORCET 1 - 2020

Explanation

Abruptio placentae is the premature separation of a normally implanted placenta from the uterine wall before the baby's birth.
The classic symptom is painful vaginal bleeding, which can be constant and severe, distinguishing it from other causes of antepartum hemorrhage.
The pain is caused by blood accumulating behind the placenta (retroplacental hematoma), which irritates the uterine muscle and can cause a tender, rigid, or 'board-like' uterus.

Option A: Placenta previa is characterized by painless, bright red vaginal bleeding. The term 'painful' in the question stem makes this option incorrect.
Option B: Placenta percreta is a form of morbidly adherent placenta where the placental villi penetrate through the entire uterine wall. Its primary complication is massive hemorrhage during or after delivery, not typically painful antepartum bleeding.
Option D: Placenta accreta is another form of morbidly adherent placenta where the villi attach directly to the myometrium. Similar to percreta, its main complication is severe postpartum hemorrhage when placental separation is attempted.

Visual 1: Diagram - A comparative illustration showing the placental location and site of bleeding in abruptio placentae versus placenta previa. This helps to visually differentiate the pathophysiology.
Visual 2: Illustration - Depicting the difference between revealed, concealed, and mixed hemorrhage in abruptio placentae.

Clinical Relevance

Nursing practice connection: This is primarily an exam-oriented knowledge point with limited direct bedside application, so retain Differential diagnosis of antepartum hemorrhage (APH) in the third trimester as background academic context rather than a clinical decision trigger.
Antepartum hemorrhage (APH) is an obstetric emergency and a leading cause of maternal and fetal morbidity and mortality. Rapid assessment and intervention are critical.
A key nursing responsibility is to quickly differentiate between painful bleeding (suggesting abruption) and painless bleeding (suggesting previa), as the immediate management priorities differ significantly.
In any case of third-trimester bleeding, a vaginal examination should be deferred until an ultrasound has ruled out placenta previa to avoid precipitating catastrophic hemorrhage.

How to Approach the Question

Step 1: Identify the key clinical features presented in the question stem: 'painful bleeding' and '34 weeks of gestation' (third trimester).
Step 2: Focus on the term 'painful bleeding' as the hallmark sign that will differentiate the correct diagnosis.
Step 3: Systematically evaluate each option based on its classic presentation.
Step 4: Rule out Placenta previa, as it is classically associated with painless bleeding.
Step 5: Rule out Placenta accreta and Placenta percreta, as these are conditions of abnormal implantation that typically manifest with massive hemorrhage during or after delivery, not painful antepartum bleeding.
Step 6: Conclude that Abruptio placentae is the only condition among the options that classically presents with painful vaginal bleeding in the third trimester.

Concept Tested & Keywords

Concept Tested: Differential diagnosis of antepartum hemorrhage (APH) in the third trimester.
Stem keywords: Painful Bleeding, 34 week of gestation
Lead-in keywords: Identify the condition
Clinical cues: Cue: 'Painful Bleeding' - This is the key differentiator from placenta previa.
Clinical cues: Cue: '34 weeks of gestation' - This places the event in the third trimester, a common time for APH.

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