If he seems unconscious, shake him gently, pinch him lightly and shout "Wake Up". Shout for help. If he doesn't respond, lay him on his back on a table or on the floor. Follow St John Ambulance ABC procedure for infant resuscitation:

A = Open The Airway
With one hand on his forehead and the other hand under his chin, tilt his head backwards. Look in his mouth and remove any food or vomit.

B = Check Breathing
With your ear close to his mouth, listen for breathing sounds and feel for his breath on your cheek. See if his chest is rising and falling. If he is not breathing, give five breaths of artificial ventilation:

• Seal your lips around his mouth and nose.
• Blow gently into his lungs until his chest rises.
• As his chest rises, stop blowing and allow his chest to fall.
• Do this five times (once every three seconds). It is important not to blow too hard into a baby's lungs as this can cause damage.

C = Circulation - Check Pulse

• Check his pulse for 5 seconds by lightly pressing your fingers towards the bone on the inside of his upper arm.
• If there is a pulse, continue artificial ventilation as before. Check his pulse frequently.
• If the baby is not breathing and there is no pulse - or the pulse is slower than 1 beat a second - start chest compression (heart massage).

Chest Compressions For Infants

• Locate a position just below the line joining the baby's nipples, in the centre of the breastbone (the flat bone extending down centre of chest).
• Place the tips of two fingers on this point and press on the chest five times to a depth of 2 centimetres (¾ inch). Repeat this at a rate of 100 times per minute.
• After each fifth compression, give one breath to the baby.
• Continue resuscitation (five compressions to one breath) for one minute before taking the baby to the phone and dialling 999 for an ambulance.
• Continue resuscitation (five compressions to one breath) checking for breathing and pulse every minute until help arrives.

If the Baby is not Breathing, but has a Pulse

• Carry out artificial ventilation at the rate of one breath every 3 seconds.
• After every 10 breaths, check that the pulse is still present.
• Continue for one minute before taking the baby to a phone and dialling 999 for an ambulance.

When the Baby Begins to Breathe
Lay him on his side, supported. Continue to check breathing and pulse every 3 minutes. You must still call an ambulance.

Recovery Position
This life saving first aid position is used for an unconscious child or adult whose breathing and pulse rate are normal. It is designed to allow the casualty to breathe freely, by preventing obstruction of the throat by the tongue or vomited matter.

• Turn the casualty on his side, make sure that he cannot roll backwards or forwards.
• Tilt his head backward with his jaw forward, to keep open the airway from mouth to lungs.
• With both arms bent at the elbow and drawn up in front of his face, position the lower arm with palm upwards to keep his lower shoulder stable.
• Draw the upper arm closer to his chest and position the hand with palm downward, so that it supports his face.
• To keep his lower body stable, bend his upper leg with the knee forward in the same direction as his face, leaving the lower leg extended.
• Check his breathing and pulse frequently. If they stop, give artificial ventilation and chest compression.