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Physiological Changes in Pregnancy

Question
24 out of 32
 

Primigravida with full term, c/o faintness on lying down & she feels well when turns to side or sitting position. This is due to: (AIIMS May 2012)



A Increased abdominal pressure

B IVC compression

C Increased intracranial pressure

D After heavy lunch

Ans. B

IVC compression

a. Aortocaval compression syndrome, is compression of the abdominal aorta and inferior vena cava by the gravid uterus when a pregnant woman lies on her back, i.e. in the supine position.

b. It is a frequent cause of low maternal blood pressure (hypotension), which can in result in loss of consciousness and in extreme circumstances fetal demise.

c. Aortocaval compression is thought to be the cause of supine hypotensive syndrome. Supine hypotensive syndrome is characterized by pallor, bradycardia, sweating, nausea, hypotension and dizziness and occurs when a pregnant woman lies on her back and resolves when she is turned on her side.

Physiological Changes in Pregnancy Flashcard List

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