Phosphatidyl glycerol - amniotic fluid

Last updated: Saturday, 20, March, 2004

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Item Process

5 mL amniotic fluid.

MethodImmunoassay, chromatography.
Reference Interval
Detectable when fetal lung maturity is present.

Determination of fetal lung maturity, usually as an adjunct to lecithin/sphingomyelin ratio.


Phosphatidyl glycerol production commences at about the time lung maturity develops.

It may be more reliable for the assessment of fetal maturity in diabetic pregnancies than the lecithin/sphingomyelin ratio.


Spillman T and Cotton DB. Crit Rev Clin Lab Sci 1989; 27: 341-389.