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양수의 Optical Density와 L/S에 관한 연구
Interrelation between Optical Density and L/S Ratio of Amniotic Fluid

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Authors
박재일; 이승철
Issue Date
1981-03
Publisher
서울대학교 의과대학
Citation
Seoul J Med 1981;22(1):101-106
Abstract
The optical density differences at 450nm (.<lOD" o) ,
optical densities at 650nm, and lecithin/sphingomyelin
ratios of amniotic fluid samples obtained from 63 normal pregnant women of various gestational periods
were measured by spectrophotometric analysis and
thin-layer chromatographic techniques.
The values of .<lOD‘' a decreased continuously with
the progression of pregnancy, and showed the possibility
of being used as a test for gestational age or
fetal maturity.
The interrelation between optical densities at 650
nm and L/S ratios. as a fetal maturity test , was
appraised. Optical density readings of O. 15 or greater
correleated 100% with L/S ratios of 2.0 or greater
Optical density readings below 0.15 correlated 83.7%
with L/S ratios below 2.0
It was thought that a more simple test of optical
density at 650nm than L/S ratio could be used as a
test for fetal maturity. But further studies needed for
confirmation.
Language
Korean
URI
http://hdl.handle.net/10371/9482
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Appears in Collections:
College of Medicine/School of Medicine (의과대학/대학원)Dept. of Medicine (의학과)The Seoul Journal of MedicineThe Seoul Journal of Medicine Vol. 22 No.1 (1981)
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