• In any case call or have somebody call 112 or 15 (in France)
• if the person is conscious :
- keep him/her awake by talking to her.
• if the person is uncounscious : undo his/her tight clothes, check if he/she’s breathing and put him/her in recovery position
• stay with him/her until emergency services arrive and inquire about the location of a defibrillator
