Correct Answer: C

Rationale: In this situation, it's essential to acknowledge and respect the client's feelings and choices. Choice C is the most appropriate response as it validates the client's decision not to discuss the surgery while offering support and understanding. Giving the client space and letting them know you will be available when they are ready shows empathy and fosters trust. Choices A and B do not respect the client's autonomy and may come across as dismissive or pressuring. Choice D assumes the client needs advice from someone who has had a similar experience without considering the client's current emotional state and preferences.

Correct Answer: A

Rationale: The correct answer is A. Nasogastric suctioning can lead to hypovolemia due to the loss of gastric fluids. Chronic constipation and syndrome of inappropriate antidiuretic hormone (SIADH) are not typically associated with hypovolemia. A toxic dose of sodium bicarbonate antacids may lead to metabolic alkalosis, not hypovolemia.

Correct Answer: A

Rationale: To determine the amount of cefoxitin to be administered with each dose, first, calculate the total daily dose by multiplying the child's weight (20 kg) by the prescribed dose (80 mg/kg/day): 80 mg/kg/day 20 kg = 1600 mg/day. Since the medication is administered every 6 hours (4 doses/day), divide the total daily dose by the number of doses: 1600 mg / 4 = 400 mg. Therefore, each dose should be 400 mg. Choice B (200 mg) is incorrect because it is half the calculated dose. Choice C (1600 mg) is incorrect as it represents the total daily dose, not the dose per administration. Choice D (100 mg) is incorrect as it is a quarter of the calculated dose.

Correct Answer: A

Rationale: A troponin level of 0.5 ng/mL is elevated, indicating myocardial damage, making it the most concerning finding in a client with a myocardial infarction (MI). Troponin is a highly specific marker for cardiac muscle damage, and elevated levels suggest ongoing injury to the heart muscle. While Creatine kinase-MB (CK-MB) is also a cardiac enzyme, troponin is more specific and sensitive for myocardial damage. Serum potassium and blood glucose levels are important parameters to monitor in MI patients, but in this scenario, the elevated troponin level takes precedence as it directly reflects cardiac injury.

Correct Answer: A

Rationale: Before starting an intensive exercise program, it is crucial for the client to have a complete physical examination. This examination ensures that the client is physically fit to engage in such activities and helps in identifying any underlying health issues that could be exacerbated by the exercise regimen. Choice B is incorrect because it focuses on stress levels related to eating habits rather than the importance of a physical examination for safety. Choice C is incorrect as exercise and stress management classes can complement each other rather than being mutually exclusive. Choice D is incorrect as monitoring weight loss, while important, is not as critical as ensuring the client's physical readiness for the exercise program.