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Abstract
Lindback, T. Amniotic Fluid Palmitic Acid Concentrations and Prediction of Fetal Lung Maturity. Scand. J. clin. Lab. Invest. 36, 689–692, 1976.
A method for rapid determination of total esterified palmitic acid concentration (TEPAC) in amniotic fluid is described. The correlation coefficient between the TEPAC and the lecithin concentration was 0.93 in 123 samples of amniotic fluid obtained during the last trimester. The respiratory distress syndrome (RDS) occurred in 73% of the cases studied with TEPAC < 0.072 mmol/1 in predelivery samples. The RDS was not observed with higher concentrations except in cases of maternal diabetes mellitus. The predictive value of total esterified fatty acid studies was confined to the concentration of palmitic acid recorded, and no specific fatty acid distributions or ratios were reliable in identifying RDS or estimating gestational age.