What should a practitioner do if a client shows signs of an adverse reaction during a patch test?

When a client shows signs of an adverse reaction during a patch test, it's crucial to document the reaction and advise against further treatments. This approach ensures the safety and well-being of the client. An adverse reaction may indicate that the client is sensitive or allergic to the product or treatment being tested, which could lead to more severe reactions if the treatment is continued.

By documenting the reaction, the practitioner creates a record that can be referred to for future sessions, allowing for informed decisions to be made. Advising against further treatments minimizes the risk of complications or worsening of the client's condition, thereby prioritizing their health.

In contrast, proceeding with treatment despite an adverse reaction could pose significant risks, including severe allergic responses or injury. Ignoring the reaction entirely shows a lack of professionalism and disregard for client care. Altering laser settings without a thorough understanding of the underlying issue also does not address the potential risk and may lead to further adverse outcomes. Prioritizing client safety through appropriate documentation and precautionary measures is the best course of action.