Correct Answer: C

Rationale: The correct answer is C: Tetanus diphtheria and acellular pertussis (Tdap) vaccine. The Tdap vaccine can be safely administered during pregnancy to protect both the mother and the newborn against whooping cough. Choices A, B, and D are incorrect because the Varicella vaccine, Inactivated polio vaccine, and Inactivated influenza vaccine are generally not recommended during pregnancy due to safety concerns.

Correct Answer: D

Rationale: The correct answer is D. After cataract surgery, wearing an eye shield at night for 2 weeks is essential to protect the eye during the initial healing period. Choice A is incorrect because significant eye pain should not be expected for the first 2 days after surgery. Choice B is incorrect as bending at the waist can increase intraocular pressure, which should be avoided postoperatively. Choice C is incorrect as there is no need to avoid sleeping on the side of the body that was operated on after cataract surgery.

Correct Answer: A

Rationale: An effective leader advocates for the unit's success and its members. Choice B is incorrect because prioritizing staff requests over client needs does not align with effective leadership, which should focus on client-centered care. Choice C is incorrect as sharing personal opinions to influence the group's values can be biased and may not reflect the best interest of the team. Choice D is incorrect because while providing client care is essential, effective leadership involves more than routine tasks and includes guiding and supporting the team.

Correct Answer: C

Rationale: Corrected Rationale: Spironolactone is a potassium-sparing diuretic, so serum potassium should be monitored to evaluate its effectiveness. Monitoring serum potassium levels is crucial because spironolactone can cause hyperkalemia as a side effect. Serum sodium, serum calcium, and serum glucose levels are not directly affected by spironolactone and would not provide an accurate assessment of the medication's effectiveness.

Correct Answer: B

Rationale: The correct answer is B. Rifampin can cause a harmless reddish-orange discoloration of body fluids, including urine. Choice A is not related to rifampin; vision changes are not a common side effect of the medication. Choice C is more relevant to medications that cause photosensitivity reactions, not specifically rifampin. Choice D is incorrect because nausea is a common side effect of rifampin, but it does not warrant immediate discontinuation of the medication.