A patient refused a newly opened fentanyl patch. Which of the following actions should the nurse take?

Correct Answer: A

Rationale: When a patient refuses a newly opened fentanyl patch, the nurse should ask another nurse to witness the disposal of the new patch. This action ensures accountability, proper protocol, and prevents any potential diversion or misuse of the medication. Disposing of the patch in a sharps container (Choice B) is not sufficient as it does not address the need for witness accountability. Sending the patch back to the pharmacy (Choice C) may not be appropriate without proper documentation and witness. Simply documenting the refusal and removing the patch (Choice D) may lack the necessary verification of proper disposal.

Correct Answer: A

Rationale: The correct answer is A: 'Regulate blood glucose levels.' Administering insulin to a patient with diabetes helps regulate blood glucose levels by facilitating the uptake of glucose into cells, thereby lowering high blood sugar levels. This process aims to prevent hyperglycemia and its associated complications. Choice B, 'Increase metabolism,' is incorrect as the primary role of insulin is not to increase metabolism directly. Choice C, 'Prevent complications,' is partially correct as regulating blood glucose through insulin administration does help prevent complications associated with uncontrolled diabetes, but it is not the primary purpose. Choice D, 'Promote insulin sensitivity,' is incorrect as insulin itself is administered to compensate for the lack of endogenous insulin in diabetic patients, rather than to promote sensitivity to it.

Correct Answer: C

Rationale: The correct answer is to monitor potassium levels when a patient is receiving furosemide because furosemide can cause potassium depletion. It is essential to monitor potassium levels to prevent complications such as hypokalemia. While monitoring urine output is important in assessing kidney function, and monitoring blood pressure and serum creatinine are relevant in certain situations, the priority when administering furosemide is to monitor potassium levels due to the medication's potential to deplete potassium.

Correct Answer: B

Rationale: When caring for a patient with a central line, monitoring for infection is a crucial nursing responsibility. This is essential to prevent complications such as bloodstream infections. While flushing the line with saline and monitoring fluid balance are important aspects of care, they are not as critical as monitoring for infection. Replacing the central line is only done when necessary due to complications or at the end of its recommended use.

Correct Answer: A

Rationale: The correct answer is to administer epinephrine. Epinephrine is the first-line treatment for severe allergic reactions because it rapidly reverses the symptoms of anaphylaxis by constricting blood vessels, increasing heart rate, and relaxing airway muscles. Corticosteroids, although helpful to reduce inflammation, are not the priority in the acute management of severe allergic reactions. Oxygen may be needed to support breathing, but it is not the initial priority. Antihistamines are not as effective as epinephrine in treating severe allergic reactions and should not be the first intervention.