Physiology of Pregnancy & Antenatal Care · NEET PG Preparation Obstetrics & Gynaecology
A pregnant woman at 34 weeks of gestation is advised to lie in the lateral recumbent position rather than the supine position. This is primarily to p…
Practice question from Physiology of Pregnancy & Antenatal Care (NEET PG Preparation Obstetrics & Gynaecology), with the correct answer and a step-by-step solution.
medium · MCQ · Q-D95C55
A pregnant woman at 34 weeks of gestation is advised to lie in the lateral recumbent position rather than the supine position. This is primarily to prevent which of the following hemodynamic phenomena?
- A.Supine hypotensive syndrome due to inferior vena cava compressionCorrect answer
- B.Portal hypertension due to hepatic artery spasm
- C.Acute renal failure due to bilateral renal artery kinking
- D.Pulmonary embolism due to deep venous stasis in the lower limbs
Solution
In the supine position, the gravid uterus compresses the inferior vena cava and aorta, reducing venous return to the heart. This leads to a substantial drop in cardiac output and arterial pressure, known as supine hypotensive syndrome (or aortocaval compression syndrome).
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