Correct Answer: B

Rationale: Toddlers with chronic illnesses requiring frequent hospitalization may experience interference with the development of autonomy. This is because the need for constant medical care can restrict their independence and ability to explore and make choices, which are essential aspects of achieving autonomy according to Erikson's stages of psychosocial development.

Correct Answer: D

Rationale: A significant drop in heart rate and blood pressure should be reported immediately as it may indicate worsening of the congenital heart defect. A decrease in blood pressure may suggest poor cardiac output and compromised perfusion, requiring urgent medical attention.

Correct Answer: D

Rationale: For a lumbar puncture in a school-age child, EMLA cream should be applied 2.5 hours before the procedure. EMLA is commonly used to numb the skin, reducing pain and discomfort for the child during the procedure.

Correct Answer: B

Rationale: The nurse's priority action should be to inspect the child's ears for drainage. This immediate assessment can provide valuable information about the presence of infection or fluid accumulation, which can directly impact the child's hearing. By identifying any signs of drainage, the nurse can promptly address any current issues affecting the child's ear health and hearing abilities.

Correct Answer: A

Rationale: An increase in urine output is a reliable indicator of improving dehydration in a child. It signifies that the kidneys are functioning better, helping to restore fluid balance in the body. Monitoring urine output is crucial in assessing hydration status and response to treatment.