• Step 1: Check your baby's condition.
Is your baby conscious? Flick her foot or gently tap on her shoulder and call out. If she doesn't respond, have someone call 911 or the local emergency number.
Swiftly but gently place your baby on her back on a firm surface. Make sure she isn't bleeding severely. If she is, take measures to stop the bleeding by applying pressure to the area. Do not administer CPR until the bleeding is under control.
• Step 2: Open your baby's airway.
Tilt your baby's head back with one hand and lift her chin up slightly with the other. (You don't need to tilt an infant's head back very far to open her airway.) Check for signs of life (movement and breathing) for no more than ten seconds.
To check for your baby's breath, put your head down next to her mouth, looking toward her feet. Look to see whether her chest is rising and listen for breathing sounds. If she's breathing, you should be able to feel her breath on your cheek.
• Step 3: Give her two gentle breaths.
If your baby isn't breathing, give her two little breaths, each lasting just one second. Cover your baby's nose and mouth with your mouth and exhale into her lungs only until you see her chest rise.
Remember that a baby's lungs are much smaller than yours, so it takes much less than a full breath to fill them. Breathing too hard or too fast can force air into the infant's stomach or damage her lungs.
If her chest doesn't rise, her airway is blocked. Give her first aid for choking, above.
If the breaths go in, give your baby two breaths in a row, pausing between rescue breaths to let the air flow back out.
• Step 4: Give her 30 chest compressions.
With your baby still lying on her back, place the pads of two or three fingers just below an imaginary line running between your baby's nipples.
With the pads of these fingers on that spot, compress the chest 1/2 to 1 inch. Push straight down. Compressions should be smooth, not jerky.
Give her 30 chest compressions at the rate of 100 per minute. When you complete 30 compressions, give two rescue breaths (step 3, above).
• Step 5: Repeat compressions and breaths.
Repeat the cycle of 30 compressions and two breaths. If you're alone with your baby, call 911 or the local emergency number after two minutes of care. Continue the cycle of compressions and breaths until help arrives.
Even if your baby resumes breathing before help arrives, she'll need to be checked by a doctor to make sure that her airway is completely clear and that she hasn't sustained any internal injuries.