In which scenario should you NOT perform rescue breathing?

The correct scenario in which you should not perform rescue breathing is when the patient has a valid 'Do Not Resuscitate' (DNR) order. A DNR order is a legal document that indicates a person's wishes regarding resuscitation efforts in the event of a cardiac arrest or life-threatening situation. It specifically allows individuals to opt out of interventions such as CPR, intubation, or rescue breathing based on their preferences and healthcare decisions.

Respecting a DNR order is crucial as it honors the patient’s autonomy and desires regarding their medical treatment in critical situations. Performing rescue breathing against the explicit wishes outlined in a DNR order could not only violate legal and ethical standards but also lead to unnecessary distress for the patient and their family.

In contrast, circumstances such as the patient being unconscious, exhibiting signs of breathing distress, or breathing irregularly may necessitate rescue breathing to ensure proper oxygenation and support prior to advanced medical help arriving. However, when a DNR is in place, the priority is to respect the individual's end-of-life decisions.