ARRT Patient Care Practice Exam

When should a cold compress be applied after extravasation?

1. As soon as possible after the incident

2. After five minutes of pressure application

3. Only if swelling is present

4. Following physician's instructions

The correct answer is: As soon as possible after the incident

Applying a cold compress as soon as possible after extravasation is crucial for minimizing tissue damage and reducing swelling. Extravasation occurs when a substance, such as a contrast agent or medication, leaks out of a blood vessel into the surrounding tissue, which can cause pain, inflammation, and potential long-term damage. Quick application of a cold compress can constrict blood vessels, thereby decreasing blood flow to the affected area. This action helps to alleviate swelling and provides some immediate pain relief. The effectiveness of this intervention is highest when the cold compress is used promptly after the incident occurs, as the initial inflammatory response is just beginning. Using a cold compress is generally advised regardless of whether swelling is immediately visible because the injury may still be progressing beneath the surface. Additionally, following physician's instructions can be critical; however, immediate intervention with a cold compress is a standard first-aid measure that should take priority. In essence, the promptness of the response to extravasation is key in managing potential complications, making immediate application of a cold compress the correct choice in this scenario.