A 32 week pregnant mother is having abdominal pain, tenderness and fetal distress. What will be the diagnosis… - NORCET 6 Prelims -2024

NORCET 6 Prelims -2024

Obstetrics & Gynaecology

Medium

Appeared in: NORCET 6 Prelims -2024

Explanation

Abruptio placenta is the premature separation of the placenta from the uterine wall, typically occurring after 20 weeks of gestation.
The classic presentation includes a triad of symptoms: sudden-onset abdominal pain, uterine tenderness (often described as a 'board-like' or rigid abdomen), and signs of fetal distress, all of which are present in this patient.
The separation of the placenta from its blood supply compromises fetal oxygenation and nutrient delivery, leading to fetal distress, which is a key finding in this case.

Option B: Placenta previa is primarily characterized by painless, bright-red vaginal bleeding. The patient's main complaints are abdominal pain and tenderness, which are not typical of placenta previa.
Option C: Abortion is defined as the termination or loss of a pregnancy before the fetus is viable, which is generally considered to be before 20-24 weeks of gestation. This patient is at 32 weeks, well into the third trimester.
Option D: An ectopic pregnancy occurs when a fertilized egg implants outside the uterine cavity, most commonly in a fallopian tube. This is a complication of the first trimester and is not a possible diagnosis at 32 weeks of gestation.

Visual 1: Diagram - An illustration comparing a normally implanted placenta, a placenta previa (low-lying and covering the cervix), and an abruptio placentae (partially separated with a visible retroplacental clot). This helps visualize the underlying pathology of each condition.
Visual 2: Table - A summary chart contrasting the key signs and symptoms of Abruptio Placentae and Placenta Previa, focusing on pain, bleeding characteristics, uterine tone, and fetal status.

Clinical Relevance

Nursing practice connection: Use the key finding related to Differential diagnosis of third-trimester bleeding and abdominal pain to guide bedside assessment, documentation, and the next nursing action.
Recognizing the signs of abruptio placentae is a critical nursing skill as it is a life-threatening obstetric emergency for both the mother (due to hemorrhage, shock, and potential DIC) and the fetus (due to hypoxia).
Immediate nursing priorities for a suspected abruption include establishing large-bore IV access for fluid and blood product resuscitation, continuous maternal and fetal monitoring, notifying the obstetric and anesthesia teams, and preparing for an emergency Cesarean section.
What if? If the patient had presented with painless, bright-red bleeding instead of pain and tenderness, the priority diagnosis would shift to Placenta Previa. The most critical nursing intervention would be to strictly avoid any vaginal or digital cervical examinations, as this could provoke catastrophic hemorrhage.

How to Approach the Question

First, identify the key clinical information provided in the scenario: a 32-week gestation (third trimester), abdominal pain, uterine tenderness, and fetal distress.
Systematically evaluate the options based on the gestational age. 'Abortion' is incorrect as it applies to pregnancy loss before 20-24 weeks. 'Ectopic Pregnancy' is incorrect as it is a first-trimester complication.
This leaves two third-trimester complications: Abruptio Placentae and Placenta Previa.
Recall the classic differentiating features. Abruptio Placentae is characterized by PAIN, uterine tenderness, and fetal distress. Placenta Previa is characterized by PAINLESS bleeding.
Compare the patient's symptoms to these classic profiles. The presence of abdominal pain and tenderness strongly points towards Abruptio Placentae.
Conclude that Abruptio Placentae is the only diagnosis that fits the complete clinical picture.

Concept Tested & Keywords

Concept Tested: Differential diagnosis of third-trimester bleeding and abdominal pain.
Stem keywords: 32 week pregnant, abdominal pain, tenderness, fetal distress
Lead-in keywords: diagnosis
Clinical cues: The combination of third-trimester gestation with a triad of pain, tenderness, and fetal distress is a classic presentation for a specific obstetric emergency.

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