Please choose the correct ending to complete the given sentence: Health: [header] How to treat a conscious choking adult or child [title] Confirm that choking is the cause of the person's distress. [step] The person may have his hands at his throat, which is the universal sign for choking. Ask the person to nod if he is choking.

Ending1: He may also say the words " choke, " " laugh, " and " cry. " ask the person to repeat these words in his head. Ending2: This sends up a series of red flags. [substeps] Only a trained professional can diagnose and treat zes. Ending3: If he doesn't nod, then there is a good chance he is choking. Unfortunately, you should also stay in contact with the person and report any bleeding and any visible breathing difficulties. Ending4: If the person is panicking or not responding, look for other telltale signs of choking, such as failed attempts to speak or cough, or bluish lips. [title] Deliver 5 blows on the back with the heel of your hand.

Answer format: ending1/ending2/ending3/ending4