What action should be taken if a patient shows signs of airway blockage from vomitus?

Turning the patient on their side is the most appropriate action to take if they show signs of airway blockage from vomitus. This position helps to prevent further aspiration by allowing gravity to assist in clearing the airway of any obstructive material.

When a patient is vomiting, the risk of inhaling stomach contents into the lungs is increased, which can lead to serious complications such as aspiration pneumonia. By positioning the patient on their side, the airway is more likely to remain clear, and any vomitus can drain out of the mouth rather than obstruct the throat.

Administering oxygen immediately, while important in many situations, does not address the immediate risk of airway obstruction. Waiting for the patient to regain consciousness is not a safe option, as the blockage must be cleared to prevent serious harm. Elevating the arms does not provide any benefit in this circumstance and does not contribute to resolving an airway obstruction.

In a clinical setting, addressing the airway is always a priority, and side positioning is a proven method to reduce risks associated with aspiration.