Administer respiratory treatments, including chest physiotherapy.

C. Emphasize the importance of hand hygiene.

D. Provide psychological counseling and support.

Choice A rationale:

Administering respiratory treatments, including chest physiotherapy, is essential in managing cystic fibrosis in children.

Cystic fibrosis often results in thick, sticky mucus in the lungs, making it difficult to clear airway secretions.

Chest physiotherapy helps loosen and mobilize these secretions, improving lung function and reducing the risk of respiratory infections.

Choice B rationale:

Encouraging a low-calorie, low-protein diet is not an appropriate intervention for managing cystic fibrosis in children.

Children with cystic fibrosis typically have increased nutritional needs due to malabsorption of nutrients, and a low-calorie, low-protein diet could exacerbate their nutritional deficiencies and growth issues.

Choice C rationale:

Emphasizing the importance of hand hygiene is a crucial nursing intervention for managing cystic fibrosis in children.

Cystic fibrosis patients are more susceptible to respiratory infections, and good hand hygiene helps prevent the spread of infections, which is especially important in a healthcare setting.

Choice D rationale:

Providing psychological counseling and support is essential for children with cystic fibrosis.

The chronic nature of the disease, frequent hospitalizations, and daily treatments can take a toll on a child's mental health.

Psychological support helps them cope with the emotional challenges and stress associated with their condition.

Choice E rationale:

Avoiding exercise and physical activity is not an appropriate intervention for managing cystic fibrosis in children.

Physical activity is beneficial for maintaining lung function and overall health in individuals with cystic fibrosis.

It helps improve airway clearance and strengthen respiratory muscles.