A nurse is assisting with the care of a client on their first prenatal visit. Which of the following screenings require follow up intervention?

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) Place the client in Sims' position for catheter insertion: Sims' position (side-lying position) is not typically used for central venous catheter insertion. The client is usually placed in a supine or Trendelenburg position to help facilitate insertion and decrease the risk of air embolism during the procedure.

B) Prepare the client for a chest x-ray to verify catheter placement: After the insertion of a central venous catheter, a chest x-ray is routinely performed to verify the correct placement of the catheter in the superior vena cava or right atrium. This is essential to ensure the catheter is properly positioned and to check for complications like pneumothorax or inadvertent placement in the lung.

C) Use clean technique when changing the catheter dressing: When changing the dressing for a central venous catheter, sterile technique is required, not clean technique. Sterile technique minimizes the risk of infection, which is a major concern when caring for central venous access devices.

D) Verify the amount of TPN solution the client is receiving every 4 hr: While it is important to monitor the amount of TPN being infused and assess for complications, verifying the exact amount every 4 hours is not a standard procedure. Typically, TPN is managed and adjusted by the healthcare provider based on lab results, weight, and clinical status, but constant monitoring of the solution is not required.