A nurse is preparing to administer a medication that requires a peak and trough level. What is the nurse's priority action?

Correct Answer: B

Rationale: The nurse's priority action should be to withhold the medication until the trough level is obtained. This is crucial to ensure accurate dosing based on the patient's levels. Administering the medication before the peak level is obtained (choice A) can lead to incorrect dosing. Administering the medication based on the previous trough level (choice C) may not reflect the current levels accurately. Ensuring that the medication is administered within 2 hours of the peak level (choice D) is not necessary for obtaining accurate peak and trough levels.

Correct Answer: A

Rationale: The most important instruction to provide when teaching a patient about self-administration of insulin is to rotate injection sites to prevent tissue damage. Rotating injection sites helps prevent lipodystrophy (tissue damage) and ensures proper insulin absorption. Option B is incorrect because the angle of insulin injection varies depending on the patient's body composition. Injecting at a 90-degree angle is not always necessary. Option C is not the most crucial instruction; while storing insulin in the refrigerator is important, it is not the priority when teaching self-administration. Option D is also important for maintaining consistency but is not as critical as rotating injection sites to prevent tissue damage.

Correct Answer: B

Rationale: The most effective intervention in managing a patient with chronic pain is teaching the patient relaxation techniques. Relaxation techniques can help reduce stress, decrease muscle tension, and improve pain management in patients with chronic pain. Administering opioids as prescribed may have risks of dependence and side effects, making it less favorable as a first-line intervention. Encouraging range of motion exercises can be beneficial, but relaxation techniques directly target stress reduction, a common exacerbating factor in chronic pain. Recommending complete bed rest is generally discouraged in chronic pain management as it can lead to deconditioning and worsen pain over time.

Correct Answer: C

Rationale: The correct answer is to administer the transfusion at a slow rate for the first 15 minutes. This practice is crucial as it helps in detecting any adverse reactions early on. Checking the patient's vital signs every 30 minutes (choice B) is important but not as essential as ensuring a slow rate at the beginning. Administering blood within 4 hours (choice A) is a standard practice but not directly related to the initial administration. Documenting the transfusion immediately (choice D) is necessary but does not directly impact the safety of the initial administration.