Which action could lead to legal issues if performed incorrectly in a medical emergency?

Performing treatments outside of your training can lead to significant legal issues in a medical emergency. This is primarily due to the principle of negligence, where a responder is expected to act within the scope of their training and certifications. If a person not adequately trained attempts a medical intervention, they could inadvertently cause harm to the victim, which may result in liability for any negative outcomes that arise.

In emergency situations, it is crucial to act within the guidelines of one's training to ensure not only the safety of the victim but also to protect the responder from legal repercussions. Properly trained individuals are aware of what actions are approved, appropriate, and safe to perform, thus minimizing the risk of adverse effects that could occur from unqualified interventions. In contrast, actions like assessing a victim's responsiveness or keeping them warm are generally within the scope of basic first aid and do not carry the same risks of legal repercussions if executed properly.