The nurse is caring for a patient who is prescribed azithromycin for a respiratory infection.
The nurse should assess the patient's medical history for any past or current conditions related to:

Choice A rationale

Taking one dose immediately and continuing the regular schedule might not provide sufficient contraceptive protection after missing three days.

Choice B rationale

Using an alternative form of contraception for 7 days is appropriate to ensure continued contraceptive protection after missing doses.

Choice C rationale

Taking two doses over the next two days can help catch up, but using an additional form of contraception for 7 days is also recommended to ensure protection.

Choice D rationale

Continuing the medication as prescribed without any additional precautions could result in ineffective contraception due to the missed doses.

Choice A rationale

While metformin is commonly used as a first-line medication for type 2 diabetes, this choice does not specifically address a critical safety concern related to metformin.

Choice B rationale

Metformin can interact with contrast dyes used in imaging studies, increasing the risk of acute renal failure due to lactic acidosis. Patients need to be aware of this interaction to avoid potential complications.

Choice C rationale

Metformin is used to lower blood glucose levels, not increase them. This choice is incorrect.

Choice D rationale

While metformin is associated with less weight gain compared to other diabetes medications, this choice does not address the critical interaction with contrast dye.