Final answer:
If redness and swelling are found during a predisposition test, it is important to stop the test and seek medical attention.
Step-by-step explanation:
When redness and swelling are found around the test area during a predisposition test, it is important to take precautionary steps to ensure the safety and well-being of the individual undergoing the test. However, there is one step that should NOT be taken in this situation, and that is to ignore the symptoms and continue with the test. The correct step to take would be to stop the test immediately and seek medical attention to assess and treat the allergic reaction. Ignoring the symptoms can lead to further complications and potentially endanger the individual's health.