Correct Answer: C

Rationale: A serum creatinine level of 1.0 mg/dL is within the normal range, but weight gain of 2 pounds in 24 hours indicates fluid retention and requires immediate intervention.

Correct Answer: B

Rationale: Placing the client in a high Fowler's position helps improve breathing and oxygenation in clients with severe dyspnea.

Correct Answer: D

Rationale: Seeing halos around lights is a symptom of digoxin toxicity, which should be reported to the healthcare provider.

Correct Answer: A

Rationale: Verapamil slows sinoatrial nodal automaticity and delays atrioventricular nodal conduction, which slows the ventricular rate.

Correct Answer: B

Rationale: An interactive game that involves physical movement is the most appropriate activity for elementary school students when educating them on the importance of physical activity. This choice is preferred because it engages children directly in physical activity, making the learning experience fun, interactive, and memorable. Children at this age group learn best through hands-on experiences and active participation, which can be effectively facilitated through interactive games. Choices A, C, and D are less suitable for this age group as they do not actively involve children in physical movement or interactive learning experiences. A lecture may not be engaging enough for young children, a worksheet may not provide the required level of activity, and a video presentation may not offer the same level of direct engagement and participation as an interactive game.