diaphragmatic hernia
A hole in the diaphragm that allows abdominal contents to push into thec hest cavity. In severe instances, a baby's stomach and part of the large intestines will displace the heart and lungs, requiring emergency surgery.
dilation
The opening of the cervix during labor.
dilation and curettage
Procedure in which the cervix is mechanically dilated and the contents of the uterus scraped or suctioned out.
Doppler ultrasound
Doppler ultrasound is used early in high-risk pregnancies to evaluate blood flow through the fetus's umbilical artery. Its ultrasonic waves shift in frequency, allowing it to measure velocity.
doula
A person specially trained to help during labor and after the birth of ababy. Might help a new mother breastfeed or cook, clean, and care for olderchildren.
dystocia
When labor does not progress. Uterine dystocia is when contractions do not intensify; shoulder dystocia is when a baby's shoulders get stuck after the head has already been delivered.
