单选题 When teaching the parents of a toddler with a congenital heart defect, the nurse should explain all medical treatments and should emphasize which instruction about their child

A、 Reduce the caloric intake to decrease cardiac demand.
B、 Relax discipline and limit setting to prevent crying.
C、 Avoid contact with small children to reduce overstimulation.
D、 Try to maintain the usual lifestyle to promote normal development.

【正确答案】 D

【答案解析】Parents of a child with a heart defect should treat the child normally and allow self-limited activity. Reducing the child's caloric intake doesn't necessarily reduce cardiac demand. Altering disciplinary patterns and deliberately preventing crying or interactions with other children can foster maladaptive behaviors. Contact with peers promotes normal growth and development and therefore should be encouraged.