What should the nurse aide do if a client starts to choke and turns blue during dinner?

When a client starts to choke and exhibits signs of turning blue, it signifies a potentially life-threatening situation due to airway obstruction. In such cases, the most appropriate action is to call for assistance and perform the Heimlich maneuver. The Heimlich maneuver is a first aid procedure designed to expel objects obstructing the airway, allowing the individual to breathe and preventing further complications.

Performing this maneuver effectively can help dislodge the food or object causing the choking, restoring normal breathing. It's critical to act swiftly in these situations, as delays can lead to serious consequences, including loss of consciousness or even death.

Other approaches, such as administering oxygen immediately, encouraging the client to drink water, or waiting for the client to cough it out, are not suitable responses. Administering oxygen is inappropriate if the airway is blocked because the individual cannot effectively take in air. Encouraging drinking may exacerbate the situation, as it would not clear the obstruction. Waiting for the client to cough could also be dangerous if the choking is severe, as it might not allow enough time for the individual to resolve the blockage on their own. Thus, initiating the Heimlich maneuver combined with seeking help is the correct approach to ensure the client's safety during a choking emergency.