Correct Answer: A

Rationale: Administering an antiemetic before meals is a crucial intervention to manage chemotherapy-induced nausea. Antiemetics are medications specifically designed to prevent or relieve nausea and vomiting. By administering the antiemetic before meals, the nurse can help prevent the onset of nausea, allowing the client to eat more comfortably. Providing frequent mouth care (Choice B) is important for maintaining oral hygiene but does not directly address nausea. Encouraging small, frequent meals (Choice C) and offering clear liquids (Choice D) are generally recommended for clients experiencing nausea, but administering an antiemetic is a more targeted approach to specifically address and manage the symptom.

Correct Answer: D

Rationale: The correct answer is to measure the ulcer's depth and diameter. This intervention is crucial as it helps monitor healing progress and evaluate the effectiveness of the care plan. Measuring the ulcer provides valuable information about the wound's improvement or deterioration. Repositioning the client every 2 hours (Choice A) is important for preventing further skin breakdown but may not be the priority in this case. Cleansing the ulcer with normal saline (Choice B) is essential for wound care but not the most crucial intervention at this stage. Applying a moisture-retentive dressing (Choice C) can promote healing, but assessing the ulcer's dimensions is more critical for monitoring progress.

Correct Answer: A

Rationale: The correct answer is A: Tachycardia, mental status change, and low urine output are early signs of shock. Tachycardia is the body's compensatory mechanism to maintain perfusion, mental status changes can indicate decreased cerebral perfusion, and low urine output reflects poor renal perfusion. Choices B, C, and D are incorrect. Warm skin, hypertension, and constricted pupils are not typical findings in the early stages of shock. Bradycardia, hypotension, and respiratory acidosis are more indicative of late-stage shock. Mottled skin, tachypnea, and hyperactive bowel sounds can be seen in various conditions but are not specific early signs of shock.

Correct Answer: C

Rationale: The correct answer is to instruct the client to report any changes in stool color to the healthcare provider. This is important because changes in stool color can indicate gastrointestinal bleeding, a serious side effect of nonsteroidal anti-inflammatory drugs (NSAIDs) like ibuprofen. Choice A is incorrect because while taking ibuprofen with meals can help reduce stomach upset, it is not the most crucial information to provide. Choice B is incorrect as taking ibuprofen with an antacid is not a standard recommendation. Choice D is also incorrect because while ibuprofen and aspirin are both NSAIDs, they can be taken together under certain circumstances, but it's important to be cautious and follow healthcare provider recommendations.

Correct Answer: B

Rationale: The correct answer is B. A diet high in protein and carbohydrates is not specifically required for Addison's disease. The focus should be on maintaining a balanced diet that is rich in fruits, vegetables, whole grains, and adequate protein sources. Choice A is correct as adherence to medication therapy is crucial in managing Addison's disease. Choice C is correct as caffeine can exacerbate symptoms of Addison's disease. Choice D is correct as dizziness can be a sign of adrenal crisis in Addison's disease, and prompt notification of healthcare providers is essential.