Correct Answer: A

Rationale: A severe allergy to amoxicillin could indicate a potential cross-reactivity with ceftriaxone, so the medication should be held. Cross-reactivity between penicillins (like amoxicillin) and cephalosporins (like ceftriaxone) is a known concern due to their similar chemical structures. Choices B, C, and D do not directly contraindicate the administration of ceftriaxone for endometritis.

Correct Answer: B

Rationale: The correct answer is B: Vomiting. Vomiting is a common sign of digoxin toxicity and should be reported to the healthcare provider. Diarrhea (Choice A) is a more common side effect of digoxin but not typically associated with toxicity. Ringing in the ears (Choice C) is a potential sign of toxicity; however, vomiting is a more immediate concern. Dizziness (Choice D) can occur with digoxin use but is not a specific indicator of toxicity.

Correct Answer: A

Rationale: A severe allergy to amoxicillin could indicate a potential cross-reactivity with ceftriaxone, so the medication should be held. Cross-reactivity between penicillins (like amoxicillin) and cephalosporins (like ceftriaxone) is a known concern due to their similar chemical structures. Choices B, C, and D do not directly contraindicate the administration of ceftriaxone for endometritis.

Correct Answer: C

Rationale: The correct answer is C. When using brimonidine to treat open-angle glaucoma, patients may experience temporary irritation in the eyes. Choice A is incorrect because vision improvement from brimonidine is not immediate. Choice B is incorrect as brimonidine should be used as prescribed, not just when eyes are irritated. Choice D is important but does not directly indicate an understanding of the medication's use.

Correct Answer: D

Rationale: The correct answer is D, Ibuprofen. Ibuprofen is a nonsteroidal anti-inflammatory drug (NSAID) that can worsen heart failure due to its effects on renal function and fluid retention. Therefore, the nurse should clarify the use of Ibuprofen with the provider. Choices A, B, and C (Furosemide, Spironolactone, and Digoxin) are commonly prescribed medications for heart failure that help manage symptoms and improve cardiac function, so they do not need clarification in this scenario.