Correct Answer: A

Rationale: Using a peak flow meter daily is crucial as it helps monitor asthma control by measuring how well the child's lungs are functioning. This monitoring can indicate when intervention is needed before symptoms worsen or become severe, allowing for timely management of asthma exacerbations.

Correct Answer: D

Rationale: Kussmaul respirations are deep, rapid breathing patterns observed in metabolic acidosis, such as diabetic ketoacidosis. In this condition, the body tries to compensate for the acidic environment by increasing the respiratory rate to eliminate excess carbon dioxide (CO2) and decrease the acid levels, thereby helping to correct the acid-base imbalance. Therefore, the correct answer is metabolic acidosis.

Correct Answer: B

Rationale: The correct diet that the practical nurse should reinforce with the parents of a child with nephrotic syndrome is a low-sodium diet. This diet is crucial for managing fluid retention and reducing the risk of edema, which are common concerns in children with nephrotic syndrome.

Correct Answer: C

Rationale: Using a barrier cream like zinc oxide forms a protective layer on the skin, creating a barrier against irritants and moisture, thus helping to prevent diaper rash. Unlike other options, barrier creams do not need to be completely removed at each diaper change, allowing the skin to remain protected between changes.

Correct Answer: A

Rationale: The priority action for the nurse is to ensure that a safety plan is in place before discharge. A safety plan is essential to assist the adolescent in managing future crises and decreasing the likelihood of another suicide attempt. It provides guidance on coping strategies and resources to help the adolescent stay safe in times of distress.