What is the primary nursing responsibility when preparing a patient for a CT scan?

The primary nursing responsibility when preparing a patient for a CT scan is to assess for allergies, particularly to iodine or contrast dye. This is critical because many CT scans involve the use of contrast agents to enhance imaging clarity. Allergic reactions to these substances can range from mild to severe, including anaphylaxis, and can occur rapidly after administration. Therefore, it is essential to obtain a thorough allergy history before the procedure to ensure the patient’s safety.

In cases where contrast material is to be administered, understanding their allergies allows for preventive measures, such as choosing a different imaging technique or premedicating the patient to mitigate allergic reactions. This responsibility emphasizes the nurse's role in safeguarding patient health through vigilance and proactive assessment prior to diagnostic interventions.