Correct Answer: B

Rationale: The correct answer is B: Teaching the patient to select nutritious foods. A nutritious diet plays a crucial role in strengthening the body's immune system, making it more capable of fighting off infections. Vitamins, minerals, and other nutrients found in healthy foods support immune function and overall health. Teaching the patient about taking a temperature (choice A) may be important for monitoring for signs of infection but does not directly decrease the risk of infection. Teaching about the effects of alcohol (choice C) and fall prevention (choice D) are important aspects of patient education but are not directly related to decreasing the risk of infection in a susceptible patient.

Correct Answer: B

Rationale: The correct answer is B: Teaching the patient to select nutritious foods. A nutritious diet plays a crucial role in strengthening the body's immune system, making it more capable of fighting off infections. Vitamins, minerals, and other nutrients found in healthy foods support immune function and overall health. Teaching the patient about taking a temperature (choice A) may be important for monitoring for signs of infection but does not directly decrease the risk of infection. Teaching about the effects of alcohol (choice C) and fall prevention (choice D) are important aspects of patient education but are not directly related to decreasing the risk of infection in a susceptible patient.

Correct Answer: B

Rationale: The most effective intervention in preventing postoperative complications is to ambulate the patient as soon as possible. Early ambulation helps prevent complications like deep vein thrombosis and pneumonia by enhancing circulation and preventing respiratory issues. Encouraging the patient to drink fluids, perform deep breathing exercises, or range of motion exercises are beneficial interventions, but ambulation is the priority due to its overall impact on preventing various postoperative complications.

Correct Answer: A

Rationale: The correct answer is to administer an antiemetic as prescribed. Chemotherapy-induced nausea and vomiting can be distressing for patients. Administering an antiemetic helps alleviate these symptoms effectively. Choice B, encouraging the patient to eat small, frequent meals, may be helpful for other gastrointestinal issues but is not the priority when the patient is experiencing nausea and vomiting. Choice C, providing anti-nausea wristbands, may offer some relief but is not as direct and immediate as administering an antiemetic. Choice D, encouraging the patient to rest after eating, is not the priority in this situation where the focus should be on managing the nausea and vomiting.

Correct Answer: B

Rationale: The correct method of safely using a sterile dressing is to discard it after 24 hours of use. This is important to prevent contamination and promote proper wound healing. Choice A is incorrect because reusing a dressing, even if it appears clean, can introduce contaminants. Choice C is incorrect as dressing changes should not be based solely on visible drainage; they should be done within the recommended time frame. Choice D is incorrect because changing a dressing every 4 hours, regardless of its condition, can lead to unnecessary wastage and disturbance to the wound healing process.