What should be done if an obstruction is suspected in a choking victim?

When an obstruction is suspected in a choking victim, performing abdominal thrusts is the correct response. This technique, also known as the Heimlich maneuver, is designed to create an upward pressure on the diaphragm, which can help expel the object blocking the airway. The thrusts cause an increase in intra-abdominal pressure that can force the lodged item out of the throat, restoring normal breathing.

Encouraging the person to drink water is not recommended in this situation. Water could potentially worsen the obstruction or lead to choking in a situation where the airway is already compromised.

Administering CPR is appropriate only when the victim becomes unresponsive and is not breathing, which is a later step in the emergency protocol if the obstruction cannot be cleared, rather than an immediate response to suspected choking.

Waiting for the person to cough it out is also not advisable when an obstruction is severe, as effective coughing may not be possible. If the victim is unable to cough or speak, immediate intervention is necessary to prevent further complications or even fatality.