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Physiology

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Respiration

Question
5 out of 6
 

Surfactant is present in amniotic fluid at:



A 34 weeks
B 32 weeks

C 28 weeks
D 36 weeks

Ans. C 28 weeks

SURFACTANT (Di-Palmitoyl-Phosphatidyl-Choline) is present in high concentration in the fetal lung homogenates at 20 weeks of gestation Q. However, it does not reach the surface of the lung until 28-38 weeks when it is present in amniotic fluid. Q