Correct Answer: C

Rationale: The correct action for the nurse to take in this situation is to discontinue the oxytocin infusion. With contractions occurring every 2 minutes and lasting 90 seconds, this pattern indicates hyperstimulation, which can be harmful to the fetus. Discontinuing the oxytocin infusion is essential to prevent further harm. Increasing the oxytocin infusion would exacerbate the situation, maintaining it would continue the risk, and providing reassurance to the client, although important, does not address the need for immediate action to ensure the safety of the fetus.

Correct Answer: A

Rationale: The correct answer is A: 'To reduce nausea and vomiting.' Antiemetics are medications used to prevent or alleviate nausea and vomiting. While they may indirectly help with appetite by reducing the unpleasant symptoms that can lead to decreased food intake, their primary purpose is not to increase appetite (Choice B). Choice C, 'To treat nausea caused by chemotherapy,' is partly correct as antiemetics are commonly used to manage chemotherapy-induced nausea, but this is not their exclusive purpose. Choice D, 'To treat allergic reactions,' is incorrect as antiemetics are not primarily used for treating allergic reactions.

Correct Answer: A

Rationale: Administering oxygen is the primary nursing action for a patient with confusion post-surgery because it helps address any potential hypoxia that may be contributing to the patient's confusion. While repositioning the patient, monitoring vital signs, and checking oxygen saturation are important nursing interventions, administering oxygen takes precedence in ensuring adequate oxygenation levels, which is crucial in managing post-surgery confusion.

Correct Answer: B

Rationale: The correct answer is B because clients with celiac disease should avoid gluten, which is found in foods like rye and barley. Choice A is incorrect because oatmeal may contain gluten unless specified gluten-free. Choice C is incorrect as rye contains gluten. Choice D is incorrect as barley contains gluten.

Correct Answer: B

Rationale: The correct answer is B: 'Serum calcium level of 8.0 mg/dL.' A low serum calcium level indicates hypocalcemia, which is a potential complication of thyroidectomy that can lead to life-threatening consequences, such as tetany or laryngospasm. Therefore, it is crucial for the nurse to report this finding promptly to the provider for timely intervention. Choices A, C, and D are important assessments following a thyroidectomy but are not as critical as detecting and addressing hypocalcemia, which can have serious implications for the client's health.