(Taiwan) a medical procedure used in prenatal diagnosis where a small amount of amniotic fluid is sampled; also known as [[羊膜穿刺|羊膜穿刺|yang2 mo2 chuan1 ci4]]

A medical procedure in which amniotic fluid is sampled via a needle inserted into the uterus to screen for developmental abnormalities in a fetus.

A prenatal medical procedure used to diagnose chromosomal abnormalities and genetic defects by using a long needle to extract a sample of amniotic fluid from the uterus.

a medical procedure used to collect cerebrospinal fluid for diagnostic purposes; spinal tap