Drug-exposed neonates.

Drug use during pregnancy can have detrimental effects--both nonspecific and highly specific--on the perinatal outcome. Nonspecific effects include fetal growth retardation, resulting in small infants and decreased head circumference. Specific effects include facial dysmorphology and organ system anomalies such as alcohol-related birth defects. Patients abusing drugs are at an increased risk for preterm labor, thereby placing an already compromised fetus at increased risk. The number of mothers and infants being infected by the human immunodeficiency virus from sharing needles, multiple sexual contacts, and mother-to-infant transmission is increasing at an alarming rate.