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.

Correct Answer: B

Rationale: Offering cooking classes that focus on healthy recipes is the most effective strategy among the choices provided. These classes not only provide valuable knowledge about nutrition but also offer hands-on experience in preparing healthy meals. This practical approach can significantly impact participants' behavior and increase the likelihood of them adopting healthier eating habits. Distributing educational pamphlets may not have the same level of engagement and interaction as cooking classes. A social media campaign, while informative, may not result in direct behavioral changes. Providing free health screenings, though beneficial for early detection, does not directly address the promotion of healthy eating habits, unlike the hands-on approach of cooking classes.

Correct Answer: C

Rationale: A heart rate of 90 beats per minute requires immediate intervention when assessing a client receiving a blood transfusion. This finding can indicate a potential transfusion reaction, such as a hemolytic reaction or fluid overload, which requires prompt evaluation and management to prevent serious complications. While a temperature of 100.4°F (38°C) may indicate a mild fever, it is not typically an immediate concern during a blood transfusion. A blood pressure of 110/70 mm Hg is within the normal range, and complaints of feeling cold can be addressed but do not indicate an urgent need for intervention compared to the critical nature of a potential transfusion reaction indicated by an elevated heart rate.

Correct Answer: D

Rationale: Rebound tenderness can indicate peritonitis, which requires immediate intervention.

Correct Answer: B

Rationale: Notifying sexual partners is crucial to prevent the spread of the infection.