What should you use after a guest regains consciousness and shows signs of life?

After a guest regains consciousness and shows signs of life, using a non-rebreather mask is appropriate because it delivers a high concentration of oxygen, which is crucial for individuals who may have experienced respiratory distress or hypoxia. The non-rebreather mask allows the patient to receive oxygen directly from a source without any risk of air mixing with the ambient environment, ensuring that they get the most effective oxygenation during recovery.

In this scenario, the individual is conscious and presents with signs of life, indicating that they do not require the same immediate interventions necessary for someone in respiratory arrest. The non-rebreather mask supports their ability to breathe while maximizing oxygen intake, helping to stabilize their condition and promoting recovery.

Alternative options, such as a standard resuscitation mask or bag valve mask, are better suited for individuals who are not breathing or are critically compromised. A standard resuscitation mask assists in ventilating patients who are not breathing, while a bag valve mask is typically used in more severe emergencies where positive pressure ventilation is necessary. An oxygen cylinder can provide supplemental oxygen but is not as effective alone as the non-rebreather mask in delivering high-flow oxygen during this phase of recovery.