Final answer:
To treat extravasation of contrast media, stop the injection, aspirate the remaining contrast, apply a cold compress, elevate, monitor for damage, and possibly use antidotes depending on the situation.
Step-by-step explanation:
The first treatment for extravasation of contrast media during an IV injection involves immediate cessation of the contrast injection, followed by careful aspiration of any remaining contrast from the IV catheter. The affected area should then be elevated and a cold compress applied to reduce inflammation and pain.
In some cases, depending on the type and amount of contrast media involved, specific antidotes may be administered. It is important to document the incident and monitor the site for any signs of tissue damage.