Why are patients carefully watched after receiving contrast media?

• A. Because reactions are rare
• B. Because most symptoms are observable
• C. Because radiographs determine reaction
• D. Because no reaction occurs

Answer: (B)

Monitoring after contrast administration is essential because adverse reactions can occur, and many early signs are outwardly observable. Staff can see or hear symptoms such as flushing, itching, hives, rash, coughing, wheezing, or shortness of breath, and can respond immediately. This visibility allows rapid detection and treatment to prevent progression to more serious complications. Keep in mind that some reactions can be delayed, so observation isn’t limited to the moment of injection. Imaging findings don’t determine whether a reaction is happening; the signs and symptoms do.