Amnio

In late pregnancy, it can be tested for surfactant levels to assess if the baby's lungs are developed enough for delivery.

Testing fetal cells for chromosomal abnormalities like Down syndrome or cystic fibrosis. In late pregnancy, it can be tested for

Measuring alpha-fetoprotein levels to detect conditions like spina bifida. In late pregnancy

Medical providers analyze this fluid during an procedure (typically between weeks 15 and 20) to check for: and exfoliated fetal cells.

Becomes a mixture of fetal urine, lung secretions, and exfoliated fetal cells.