If a choking adult becomes unresponsive while you are doing abdominal thrust - you should ease the victim to the floor and send someone to activate your emergency response system. When a choking victim becomes unresponsive, you begin the steps of CPR-starting with compressions.
Hold two fingers to beneath the jaw line then count how many beats in 6 (eg) seconds the multiply by 10 (eg) so you get the number of beats in one minute