The practical nurse (PN) is assisting with the plan of care for a client with costochondritis who is now experiencing increased discomfort in breathing. The client receives a prescription for tramadol. What intervention should the PN include in the client's plan of care?

Perform a daily whisper test of the client's hearing to detect symptoms of ototoxicity

Examine the client for stomatitis and erosion of tooth enamel

Ensure peak and trough serum levels are collected with the third medication dose

Implement ongoing assessments for signs of shallow or slow breathing