Correct Answer: A

Rationale: All of these tasks fall within the PN's scope of practice, which includes performing surgical dressing changes, taking postoperative vital signs, and administering insulin under supervision. The RN can delegate these tasks to the PN safely. Choice A is the correct answer because all the tasks mentioned are appropriate for delegation to a PN. Choice B should not be assigned to a PN as only RNs should administer insulin. Choice C is suitable for delegation to a PN as obtaining vital signs falls within their scope of practice. Choice D is also appropriate for delegation to a PN as performing surgical dressing changes is within their scope of practice.

Correct Answer: B

Rationale: The correct answer is B: 'I should use my rescue inhaler when I start to experience wheezing.' A rescue inhaler is used during the onset of asthma symptoms, such as wheezing, to quickly open the airways. It is not intended for routine daily use or prevention, which is the role of a maintenance inhaler. Option A is incorrect because a rescue inhaler is not used for prevention but for immediate relief during an asthma attack. Option C is incorrect because the peak flow meter reading is used to monitor asthma control, not to determine when to use a rescue inhaler. Option D is incorrect because using a rescue inhaler only before going to bed does not address the need for immediate relief when wheezing or experiencing asthma symptoms.

Correct Answer: B

Rationale: The correct advice for a client experiencing dizziness when standing up quickly is to change positions slowly to prevent dizziness. This symptom is suggestive of postural hypotension, where a sudden change in position can lead to a drop in blood pressure, causing dizziness. Encouraging the client to drink more fluids (Choice A) may be beneficial for other conditions but is not directly related to the prevention of dizziness in this case. Reporting the symptom to the healthcare provider immediately (Choice C) is important if the dizziness is persistent or severe, but the immediate action to prevent it is to change positions slowly. Limiting physical activity (Choice D) may not necessarily address the underlying cause of dizziness in this context.

Correct Answer: D

Rationale: The correct action for the nurse to implement while awaiting surgery for a client with muscle spasms due to a broken femur is to encourage oral fluid intake to relieve muscle tension. Dehydration can exacerbate muscle spasms, so increasing fluid intake can help alleviate them. Checking electrolyte levels may not directly address muscle spasms in this situation. Administering a muscle relaxant should be based on a healthcare provider's prescription, and traction weight adjustments should only be made by the provider overseeing the client's care.

Correct Answer: B

Rationale: The correct answer is B: 'Take the medication on an empty stomach.' Levothyroxine should be taken on an empty stomach to enhance absorption and effectiveness. The medication is typically taken in the morning before breakfast. Choice A is incorrect because taking levothyroxine with a full meal can decrease its absorption. Choice C is incorrect because bedtime dosing may lead to insomnia. Choice D is incorrect because levothyroxine is a daily medication for hypothyroidism, not to be taken as needed for symptoms.