Folic acid supplementation esp in the first trimester (first 8 weeks) A bony defect in the vertebral column that causes a cleft in that column. Birth defect where there is a sac protruding from the spinal column. The sac includes spinal fluid, but does not contain neural tissue. It may be covered with skin or with meninges (the membranes that cover the central nervous system). The sac often is visible from the outside of the back. Assessment of neurologic and associated anomalies spasticity or flaccidity. Early closure within 24 to 48 hours after birth. Anencephaly is a defect in the formation of a baby"s neural tube during development. A baby born with anencephaly might be stillborn or survive only a few hours to a few days after birth. With an ultrasound 18 weeks into pregnancy. Self-catheterization 10 to 12 years of age. Bowel training 1 to 2 days. Gel-filled cushion and shift position to prevent skin breakdown.