Infants more often have a breathing problem than an actual heart problem. Prevention of choking in infants is crucial.
It is important to begin CPR immediately and perform two minutes of CPR before going to get additional help.
If someone else is available, send them to call 911/EMS and to find an AED. One set of CPR consists of 30 compressions and two breaths for one provider or 15 compressions and two breaths for two providers. When the second rescuer returns, have them follow the AED prompts, apply AED pads and help with CPR.
If the infant is unresponsive and not breathing or only gasping for air, provide CPR.