Comparison of Four Indexes to Fetal Pulmonary Maturity
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Abstract With use of the same amniotic fluid specimens, lecithin concentration was compared with nonchromatographically determined glycerophospholipid, total lipid phosphorus, and the bubble-stability test as indexes of fetal lung maturation. The lecithin analysis was performed by thin-layer chromatography, with use of a semiautomated method of spotting and nondigestive release of phosphorus from the separated spots. We conclude that, next to the chromatographic analysis, the best tests are glycerophosphatide P, the bubble-stability test, and total lipid P, in that descending order. Lecithin determination as compared with densitometric evaluation of the lecithin/sphingomyelin ratio is discussed.
1981 ◽
Vol 36
(10)
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pp. 543-544
1986 ◽
Vol 261
(5)
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pp. 2179-2184
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1992 ◽
Vol 9
(01)
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pp. 34-37
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2005 ◽
Vol 317
(1)
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pp. 117-126
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1993 ◽
Vol 19
(6)
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pp. 619-630
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