Fetal Lung Maturity
by Cathy Parkes September 13, 2020 Updated: February 16, 2024
An amniocentesis is a procedure used to identify chromosomal abnormalities, neural tube defects, Rh incompatibility, and fetal lung maturity.
Fetal lung maturity is determined by the L/S ratio (HINT: L/S measures levels of Lung Surfactants). An L/S ratio ≥ 2:1 indicates the baby's lungs are mature.
Glucocorticoids can help promote fetal lung maturity in pre-term labor. Give 24-48 hours before birth.
To learn more, see our full article on amniocentesis!
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