A nurse is collecting data from a client who has pyelonephritis and receiving gentamicin via IV infusion. Which of the following manifestation should the nurse identify as an adverse effect of the treatment?

A) Slurred speech:
Slurred speech is not a common adverse effect of gentamicin. It could indicate neurological issues, but it is not typically associated with gentamicin use. If this occurs, the nurse should investigate other possible causes, such as a stroke or another neurological condition, rather than attributing it to the gentamicin.

B) Constipation:
Constipation is not a typical adverse effect of gentamicin. While antibiotics can sometimes cause gastrointestinal disturbances, gentamicin is more commonly associated with nephrotoxicity and ototoxicity, rather than constipation. If constipation occurs, it is more likely related to other factors such as diet or fluid intake.

C) Hypotension:
While hypotension can be a side effect of many medications, it is not a specific or common adverse effect of gentamicin. Gentamicin is more likely to cause nephrotoxicity and ototoxicity rather than significant blood pressure changes. However, hypotension could occur in the context of an infection or severe illness and should be monitored, but it is not directly associated with gentamicin.

D) New onset of hearing loss:
This is a well-known adverse effect of gentamicin. Gentamicin belongs to the class of antibiotics known as aminoglycosides, which can cause ototoxicity. New onset of hearing loss or tinnitus (ringing in the ears) is a significant warning sign of ototoxicity, which can occur due to gentamicin use. This side effect should be monitored closely, and if hearing loss occurs, the medication should be reevaluated, and alternatives should be considered.

A) Wait 1 min between suctioning attempts: The nurse should wait 20 to 30 seconds between suctioning attempts, not a full minute. Waiting too long between attempts can cause the patient unnecessary distress. The goal is to allow for oxygenation and recovery of the airway in between suctioning attempts.

B) Apply intermittent suction for 30 seconds: Suctioning should be limited to 10 to 15 seconds at a time to prevent hypoxia and damage to the mucous membranes. Applying suction for 30 seconds could lead to complications such as hypoxia, mucosal trauma, and increased risk of infection.

C) Insert the catheter 10 cm (4 in.): This is the correct technique. For an adult client, the catheter should be inserted 10 cm (4 inches) into the airway. Inserting the catheter too far can cause trauma to the airway, while inserting it too shallow may not effectively clear secretions.

D) Apply suction while inserting the catheter: Suction should not be applied while inserting the catheter. Suctioning should only be applied while withdrawing the catheter, not while inserting it, to prevent mucosal trauma and to ensure effective clearance of secretions. Suctioning during insertion could damage the airway and increase discomfort for the client.