- Maternal serum alpha-fetoprotein is detectable at 7 weeks of gestation and peaks in the third trimester. High levels detected between the 16th and 18th weeks are associated with neural tube defects. Low levels are associated with Down syndrome.
- An arrest of descent occurs when the fetus doesn’t descend through the pelvic cavity during labor. It’s commonly associated with cephalopelvic disproportion, and cesarean delivery may be required.
- An arrest of descent occurs when the fetus doesn’t descend through the pelvic cavity during labor. It’s commonly associated with cephalopelvic disproportion, and cesarean delivery may be required.
