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  • Title: [Various amniotic studies in the assessment of fetal pulmonary maturity].
    Author: Motta C.
    Journal: Ann Biol Clin (Paris); 1982; 40(3):249-54. PubMed ID: 7137660.
    Abstract:
    The need for knowledge concerning foetal pulmonary maturity has led biochemists to develop a number of techniques based upon knowledge of amniotic phospholipids. Study of these phospholipids of foetal pulmonary origin is possible using biochemical and physical methods. The former include the L/S (Lecithin/sphingomyelins) ratio, as well as the measurement of total lecithins, or the palmitic acid/stearic acid ratio (P/S). Physical methods are based upon surface tension (Clements test) or fluidity (measurement of microviscosity by polarization of fluorescence) properties of phospholipids. Combination of several reproducible, sensitive and reliable tests (E/S ratio, microviscosity, Clements test) provides adequate information concerning foetal pulmonary maturity.
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