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A member asked:
Fetal lung fluid & pee = amniotic fluid? so how do they get chromosomes?
A doctor has provided 1 answer
Exfoliated fetal cel: The amniotic fluid that is contained within the pregnancy sac and surrounds the fetus is fetal urine (after 16-18 weeks) and is swallowed by the fetus and aspirated into its lungs to help them mature. When a doctor performs an amniocentesis to sample this fluid, the goal is to get fetal cells that float in that fluid (exfoliated from various fetal tissues but mainly from the skin) for dna analysis.
Answered 12/9/2013
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