During CPR in a pregnant mother, if the uterus is palpable, what should the nurse keep in mind regarding ches… - NORCET 6 mains-2024

NORCET 6 mains-2024

Obstetrics & Gynaecology

Hard

Appeared in: NORCET 6 mains-2024

Explanation

In a pregnant patient with a palpable uterus (typically after 20 weeks), lying supine causes the uterus to compress the inferior vena cava and aorta.
This phenomenon, known as aortocaval compression, severely reduces venous return to the heart and decreases cardiac output.
Without adequate cardiac output, chest compressions are ineffective as there is insufficient blood to circulate.
The primary intervention is to manually perform Left Uterine Displacement (LUD) by pushing the uterus to the left, which relieves the compression and restores blood flow, making CPR effective.

Option A: The recommended depth of chest compressions for adults, including pregnant women, is at least 2 inches (5 cm). Increasing the depth is not the indicated modification and could increase the risk of injury.
Option B: Decreasing the depth of chest compressions would make them less effective. High-quality CPR with adequate depth is essential.
Option D: Failing to modify the procedure by performing Left Uterine Displacement (LUD) means the underlying problem of aortocaval compression is not addressed, making CPR efforts futile.

Visual 1: Diagram - An illustration showing a rescuer performing CPR on a pregnant woman while another person manually displaces the uterus to the left.
Visual 2: Anatomical Drawing - A cross-section of a pregnant woman in the supine position, demonstrating how the gravid uterus compresses the aorta and inferior vena cava.

Clinical Relevance

Nursing practice connection: Knowing Cardiopulmonary Resuscitation (CPR) modifications in pregnancy helps nurses interpret findings accurately and avoid errors in routine assessment, medication administration, and patient teaching.
Left Uterine Displacement (LUD) is a critical, life-saving skill for any nurse responding to a cardiac arrest in a pregnant patient beyond 20 weeks of gestation.
Failure to perform LUD is a common error that leads to poor outcomes. It should be one of the first actions taken when initiating CPR in this population.
This simple manual maneuver can dramatically improve the effectiveness of resuscitation efforts and increase the chances of survival for both the mother and the fetus.

How to Approach the Question

First, identify the patient population: a pregnant mother.
Next, identify the key clinical context from the stem: 'palpable uterus'. This signals that the pregnancy is advanced.
Recall the major physiological change in late pregnancy that impacts resuscitation: aortocaval compression by the gravid uterus in the supine position.
Analyze the options based on this physiological principle. The core problem is reduced blood flow to the heart, not an issue with the chest itself.
Eliminate options that don't address aortocaval compression (changing compression depth) or ignore it (no changes).
Select the option that directly corrects the problem: shifting the uterus to the left to relieve the pressure on the great vessels.

Concept Tested & Keywords

Concept Tested: Cardiopulmonary Resuscitation (CPR) modifications in pregnancy
Stem keywords: CPR, pregnant mother, palpable uterus, chest compressions
Lead-in keywords: what should the nurse keep in mind
Clinical cues: The cue 'palpable uterus' indicates the pregnancy is advanced enough (second half) to cause significant aortocaval compression.

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