An infant who is developmentally delayed has a ventricular peritoneal (VP) shunt for hydrocephalus. The nurse makes a postoperative home visit to assess the child's progress. During the visit, the mother tells the nurse, "When the shunt is removed, the pressure in my baby's head will be gone." Which response should the nurse provide?

Choice A reason: "Many infants outgrow the need for a shunt after the neonatal period." is not a correct response that the nurse should provide. This statement is false, as most infants with hydrocephalus will need a shunt for life. Only a small percentage of infants with post-hemorrhagic hydrocephalus may outgrow the need for a shunt .

Choice B reason: "The shunt will be replaced as your child grows to reduce pressure in the brain." is the correct response that the nurse should provide. This statement is true, as the shunt will need to be adjusted or replaced as the child grows to accommodate the changes in the size and shape of the head and the amount of fluid drainage. The nurse should educate the mother about the signs and symptoms of shunt malfunction and the need for regular follow-up visits.

Choice C reason: "Other pathways in the brain will drain fluid after the shunt is removed." is not a correct response that the nurse should provide. This statement is false, as the shunt is not removed unless there is a serious complication or the child no longer needs it. The shunt is a permanent device that bypasses the blocked or impaired pathways in the brain and allows the fluid to drain into the abdomen. Without the shunt, the fluid will accumulate in the brain and cause increased pressure and damage.

Choice D reason: "The shunt will have to be reinserted only if an infection or blockage develops." is not a correct response that the nurse should provide. This statement is false, as the shunt is not removed and reinserted unless there is a serious complication or the child no longer needs it. The shunt is a permanent device that stays in place unless it malfunctions or becomes infected. The nurse should educate the mother about the signs and symptoms of shunt infection and the need for prompt treatment.

Choice A reason: Playing "peek-a-boo" is a normal behavior for a 6-month-old infant. It shows that the infant has developed object permanence, which is the understanding that objects and people still exist even when they are out of sight. This is a sign of cognitive development and social interaction.

Choice B reason: Turning head to locate sound is a normal behavior for a 6-month-old infant. It shows that the infant has developed auditory localization, which is the ability to identify the direction and distance of a sound source. This is a sign of sensory development and curiosity.

Choice C reason: Having doubled birth weight is a normal milestone for a 6-month-old infant. It shows that the infant has adequate growth and nutrition. The average birth weight for a full-term infant is about 3.4 kg (7.5 lb), and the average weight for a 6-month-old infant is about 6.8 kg (15 lb).

Choice D reason: Demonstrating startle reflex is an abnormal behavior for a 6-month-old infant. The startle reflex, also known as the Moro reflex, is an involuntary response to a sudden loud noise or movement. The infant will extend the arms and legs, arch the back, and then curl the arms and legs inward. This reflex is present at birth and usually disappears by 4 months of age. If the reflex persists beyond 6 months of age, it may indicate a neurological problem or developmental delay. The nurse should request further evaluation by the health care provider.