Always. If you witnessed the collapse, immediate application of the AED offers the best chance of successful defibrillation. If the patient does not need defibrillation (only two heart rhythms are shocked by an AED), the AED won't attempt it, so applying one can't hurt, and it may save a life.
Hook up the AED when the absence of a pulse is confirmed.
Once you determined there are no signs of life, immediately hook up the AED.
Early defib saves lives. However, an AED can only correct two rhythms,
Ventricular Tachycardia and V-Fib.
Use the AED when the pulse is confirmed absent.
Yes; for an adult use AED immediately for no signs of life and child use AED immediately no breathing and no pulse.
No; once there are no signs of life hook up the AED immediately.
If the victim is breathing normally, but not responding you should
Yes you should put a victim in a recovery position when victim is unresponsive and breathing.
If the victim is not breathing and has no pulse, cardiopulmonary resuscitation (CPR) should be started.
Artificial respirationAnother answer:I'd go with the Heimlich maneuver.
If signs of life become visible you should check for a pulse. If the victim has no pulse, CPR should be continued. If the victim has a pulse, CPR should be ceased but you must continue to monitor the victim's vital signs.
AEDs should only be used when a pulse is not detected. Rescue breathing should be used when the victim is not breathing.
If the victim is breathing normally, but not responding you should
Continue or begin CPR. Agonal respirations do not indicate that the victim is breathing on his own. They are also known as the "death rattle".
Watch the victim's chest for 15 seconds or more. If the chest rises - the victim is breathing. If not - start artificial respiration.