Chris, continue CPR until my word.

But when the ambulance came, they could do nothing for her husband but continue CPR.

Continue CPR until the person begins breathing or emergency help arrives.

Nelson continued CPR.

If a shock isn't needed, continue CPR until emergency help arrives or the person begins to move.

Continue CPR until the person begins breathing again or emergency medical personnel take over.

But the emergency technicians continued CPR anyway.

He continued CPR for another thirty minutes, stopping every five minutes to try the phone again.

He held the phone between his shoulder and ear, continuing CPR, as over and over it rang.

He continued CPR and hung on to hope.