Correct Answer: A

Rationale: Playful children often exhibit flexible problem-solving skills as they engage in creative and imaginative thinking. Their playful nature allows them to approach problems in unique ways, fostering better problem-solving abilities compared to those who may be more rigid in their thinking.

Correct Answer: C

Rationale: Nifedipine primarily acts as a calcium channel blocker. It lacks significant effects on the calcium channels of the heart, making it ineffective for treating dysrhythmias like Atrial Fibrillation. Nifedipine is commonly used in conditions such as angina pectoris, essential hypertension, and vasospastic angina due to its vasodilatory effects and anti-anginal properties.

Correct Answer: A

Rationale: The correct instruction for a parent of a toddler with congenital heart disease is to offer small, frequent meals. This helps reduce the cardiac workload on the child's heart and aids in easier digestion and nutrient absorption, supporting the child's overall health.

Correct Answer: A

Rationale: The total intake is 440 mL (4 oz of Pedialyte = 120 mL, half of an 8 oz Jell-O = 120 mL, and 200 mL of IV fluids). Therefore, the correct answer is 440.

Correct Answer: D

Rationale: The correct instruction to prevent SIDS is to give the infant a pacifier at bedtime. The use of a pacifier while the infant is sleeping is associated with a decreased risk of SIDS. Other recommended preventive measures include placing the infant on their back to sleep, using a firm mattress in the crib, and avoiding soft bedding or pillows.