A male client reports to the on-call nurse that he took tadalafil 10 mg by mouth two hours ago and his skin now feels flushed. He reports a history of stable angina, but denies experiencing any current or recent chest pain. Which action should the nurse take?

Choice A: Obtain a blood pressure reading before the client gets out of bed. This is the most important intervention, as it can prevent or detect orthostatic hypotension, which is a drop in blood pressure when changing position from lying to standing. Orthostatic hypotension can cause dizziness, fainting, or falls, and it can be caused by medications, dehydration, or cardiac problems.

Choice B: Monitor and record the client's urinary output every day. This is not the most important intervention, as it does not address the client's anxiety or adjustment issues. The urinary output should be monitored for signs of fluid balance, kidney function, or infection, but it is not a priority for this client.

Choice C: Provide the client with teaching regarding a cardiac diet. This is not the most important intervention, as it does not address the client's anxiety or adjustment issues. The cardiac diet should be taught to promote heart health, lower cholesterol, and reduce sodium intake, but it is not a priority for this client.

Choice D: Assess the client's vital signs every 4 hours when awake. This is not the most important intervention, as it does not address the client's anxiety or adjustment issues. The vital signs should be assessed for signs of infection, pain, or hemodynamic instability, but they are not a priority for this client.

Choice A: Obtaining postoperative vital signs for a client one day following unilateral knee arthroplasty is a nursing action that the nurse can assign to the PN, as this is a basic skill that does not require complex judgment or intervention by the registered nurse. Therefore, this is a correct choice.

Choice B: Starting the second blood transfusion for a client twelve hours following a below knee amputation is not a nursing action that the nurse should assign to the PN, as this is an advanced skill that requires close monitoring and evaluation by the registered nurse. This is an incorrect choice.

Choice C: Initiating patient controlled analgesia (PCA. pumps for two clients immediately postoperatively is not a nursing action that the nurse should assign to the PN, as this involves administering controlled substances and assessing pain levels, which are beyond the scope of practice of the PN. This is another incorrect choice.

Choice D: Performing daily surgical dressing change for a client who had an abdominal hysterectomy is a nursing action that the nurse can assign to the PN, as this is a routine task that can be done under the supervision and direction of the registered nurse. Therefore, this is another correct choice.

Choice E: Administering a dose of insulin per sliding scale for a client with type 2 diabetes mellitus (DM) is a nursing action that the nurse can assign to the PN, as this is an established protocol that can be followed by the PN with appropriate documentation and reporting. Therefore, this is another correct choice.