Early childhood educators are likely to encounter children who experienced oxygen deprivation during the birth process. An understanding of the early signs of this condition, sometimes referred to as asphyxia, and of the cognitive and motor deficits that may result can assist in the planning of appropriate services. This article is a review of causes, effects on the brain, clinical manifestations, and developmental consequences.Kirsten's mother had an ideal pregnancy. Determined to give her first child the best start possible, she started prenatal care early, ate a proper diet, quit smoking, and avoided alcohol. Everything went well, until several hours into labor. Although contractions were long and intense, the baby did not seem to be progressing through the birth canal at the anticipated rate. When the doctor noted that the amniotic fluid was mixed with meconium, monitors were affixed to display the baby's heart rate. Tension increased when slowing of the heart rate was noted with each uterine contraction, and the doctor hurriedly called for an emergency cesarean section. When the baby was finally delivered, she was blue and limp, appearing lifeless. A resuscitation team was standing by to revive the child. The 1-minute Apgar score was 1; the 5-minute score was 3. During the next few days Kirsten began breathing on her own but remained minimally responsive and developed seizures, which were controlled with anticonvulsant medication. Although she had to be fed for the first week with a TECSE 9(1), 1-13 (1989) © PRO-ED Inc.