A pregnant woman experiences IVC compression while sleeping. Which position should be advised?

NORCET 10 Mains

Obstetrics & Gynecology

Easy

Appeared in: NORCET 10 Mains

Explanation

In late pregnancy, the weight of the gravid uterus can compress the inferior vena cava (IVC) when the woman is in a supine position, leading to supine hypotensive syndrome.
The left lateral position displaces the uterus to the left, away from the IVC which lies slightly to the right of the midline of the body.
This maneuver relieves the compression on the IVC, restoring venous return to the heart.
Improved venous return leads to increased cardiac output, which corrects the hypotension and improves blood flow to both the mother and the fetus.

Option B: The prone position (lying on the stomach) is impractical, uncomfortable, and potentially harmful during the later stages of pregnancy.
Option C: The supine position (lying flat on the back) is the direct cause of IVC compression in a pregnant woman, as the uterus presses on the vein.
Option D: While a sitting position is better than supine and can partially alleviate IVC compression, it is not the most effective therapeutic position for rest or sleep.

Visual 1: Diagram - An anatomical illustration showing the cross-section of a pregnant woman's abdomen in both supine and left lateral positions. The diagram should clearly depict the gravid uterus compressing the inferior vena cava and aorta in the supine view, and the relief of this compression in the lateral view.
Visual 2: Infographic - A simple infographic for patient education showing a pregnant woman sleeping on her left side with pillows for support, with a 'tick' mark, and another image of her on her back with a 'cross' mark, captioned 'Avoid sleeping on your back'.

Clinical Relevance

Nursing practice connection: This is primarily an exam-oriented knowledge point with limited direct bedside application, so retain Management of Supine Hypotensive Syndrome in Pregnancy as background academic context rather than a clinical decision trigger.
Patient education is a key nursing role. Nurses must instruct pregnant women to avoid the supine position from the second trimester onwards and to favor sleeping on their left side.
During labor, if a woman must be in a supine position for a procedure (like epidural placement), a wedge should be placed under her right hip to maintain a leftward tilt and prevent hypotension.
Recognizing symptoms of supine hypotension (dizziness, nausea) and intervening immediately by repositioning the patient is a critical patient safety measure.

How to Approach the Question

First, identify the core clinical issue in the question: a pregnant woman with symptoms of IVC compression.
Recall the pathophysiology of supine hypotensive syndrome: the gravid uterus compressing the inferior vena cava in the supine position.
Analyze the anatomical relationship: The IVC is located to the right of the spine. To relieve pressure, the uterus must be shifted away from it.
Evaluate each option based on this principle:
Supine: This is the cause of the problem.
Prone: This is not feasible or safe in pregnancy.

Concept Tested & Keywords

Concept Tested: Management of Supine Hypotensive Syndrome in Pregnancy
Stem keywords: pregnant woman, IVC compression, sleeping, position
Lead-in keywords: Which position should be advised
Clinical cues: The patient is a pregnant woman, which is a key factor for considering supine hypotensive syndrome.

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