You are giving care to a conscious adult who is choking (complete airway obstruction). The victim becomes unresponsive after 1 minute. You carefully lower the person to the floor. What is your next action?

1) Begin CPR
2) Call for emergency medical help
3) Perform abdominal thrusts
4) Check for breathing and pulse

When an adult choking victim becomes unresponsive, you should call for emergency help, begin CPR, and perform chest compressions. So, the correct option is 1) Begin CPR.

Explanation:

If you are giving care to a conscious adult who is choking with complete airway obstruction and becomes unresponsive or unconscious, your next action should be to call for emergency medical help if you haven't already done so. After that, you should begin CPR, starting with chest compressions. A common myth is that abdominal thrusts should be performed on someone who is choking and has become unconscious, but the reality is that, upon becoming unresponsive, the priority shifts to performing CPR.

CPR is generally performed until the patient regains spontaneous contraction or is declared dead by an experienced healthcare professional. If you witness someone choking, encourage them to cough and provide back slaps before proceeding with the Heimlich maneuver. In the case of infants, turn them upside down and slap them on the back to dislodge the blockage. Time is of the essence in such emergencies, as brain cells can begin to die within minutes due to lack of oxygen.