A client with paranoia is admitted to the mental health unit and immediately goes to the corner of the room and sits quietly without communicating. In approaching the client, what intervention should the practical nurse (PN) implement first?

The best action for the practical nurse (PN) to assist the client in dealing with his pain would be to guide the client through slow, rhythmic breathing.
Guiding the client through slow, rhythmic breathing techniques can help promote relaxation and reduce anxiety, which can indirectly contribute to pain relief. Deep breathing exercises can help the client focus on their breath and divert attention away from the pain, providing some relief and helping them cope with the discomfort. It is a non-pharmacological intervention that can be implemented immediately to help the client manage their pain.
The other options are less effective or not appropriate in this situation:

A. Dimming the lights in the room and closing the door may create a more calming environment, but it does not directly address the client's pain or provide them with effective pain relief.
B. Turning the television on to the client's favorite show may serve as a distraction, but it may not be sufficient to alleviate the client's pain.
D. Obtaining a prescription for a higher dose of pain medication should only be considered after evaluating the client's current pain management regimen and assessing their response to the current medication. It is not the immediate best action to take without further assessment and consideration of other non-pharmacological interventions.

This is the correct answer because BUN and creatinine are the most important laboratory values to monitor for nephrotoxicity, which is the damage or injury to the kidneys caused by certain drugs or chemicals.
Nephrotoxicity can impair the kidneys' ability to filter waste products from the blood, resulting in elevated levels of BUN and creatinine. The normal range for BUN is 7 to 20 mg/dL, and for creatinine is 0.6 to 1.2 mg/dL. The practical nurse (PN) should review these values before administering an antibiotic that can cause nephrotoxicity, such as aminoglycosides, cephalosporins, vancomycin, or sulfonamides. The PN should also monitor the client for signs and symptoms of nephrotoxicity, such as decreased urine output, edema, hypertension, fatigue, nausea, and confusion.