Check if the baby is conscious.

It's best to flick your fingers against the feet. If the baby doesn't respond at all, and there is anyone else around, ask them to call for emergency help.

• Not conscious
• Conscious but choking

If you are alone with the baby, do CPR for 2 minutes before calling emergency services.

If the baby is coughing or gagging while choking, let her continue to cough and gag on her own.

Coughing and gagging — a good sign — means that her airways are only partially blocked.

If the baby is not coughing, you'll need to be prepared to perform back blows and/or chest thrusts in order to dislodge whatever is blocking her airways.

Check the baby's pulse.

Check for breathing again, and this time place your index and middle fingers on the inside of the baby's arm, between the elbow and the shoulder.

• No pulse and no breathing
• There is pulse and breathing

If the baby has a pulse and is breathing, put the body in recovery position.

Open the airway.

Gently lift the baby's head back and chin up to open the child's airway. The airway is small, so this won't be a drastic movement.

Again, check for breathing during this time, but for no longer than 10 seconds.

Give the baby two rescue breaths.

Pinch the nose shut, tilt the head back, push up the chin, and give two breaths, each lasting about one second. Exhale gently until the chest rises; exhaling too forcefully can cause injury.

If you have one, put a face shield on the baby to prevent the exchange of bodily fluids.

Remember to pause in between breaths to let the air out.

If you feel that the breaths did not go in (the chest doesn't rise at all) the airway is obstructed and the child may be choking. Administer help for infant that is choking.

Check for the brachial pulse after doing the first two rescue breaths.

If there is no pulse, begin CPR on baby.

Compress the chest 30 times with several fingers.

Take two or three fingers held together and place them in the middle of the baby's chest right below the nipples. Gently, fluidly compress the baby's chest 30 times.

If you need to brace your fingers because they are getting tired, use your second hand to help assist the process.

Otherwise, keep your second hand cradling the baby's head.

Try to perform your chest compressions at a rate of about 100 compressions per minute.

That may seem like a lot, but it's actually only a little over one chest compression a second. Still, try to maintain a fluid push and release when performing compressions.

Press down 1/3 to 1/2 the depth of the baby's chest. This usually works out to about 1 and 1/2 inches.

Perform the same series of two rescue breaths and 30 chest compressions until you are relieved or see signs of life.

At the right speed, you should do about 5 sets of rescue breaths and compressions within approximately two minutes.

Once you start CPR, don't stop unless you see signs of life.

That is baby moves, coughs, breathes noticeably, or vocalizes. Vomiting is not a sign of life.

Or another trained person takes over or a defibrillator is ready to be used or the scene becomes suddenly unsafe.

To remember the stages of CPR, remember ABC.

A is for airway. Open or check that the airway is open. B is for breathing. Pinch the nose, tilt the head back, and give two rescue breaths. C is for circulation. Check if the baby has a pulse. If not, perform 30 chest compressions.