"C" is for CIRCULATION. An infant's pulse is checked at the brachial artery, which is located inside of the upper arm, between the elbow and the shoulder (Figure 1).
Once you have established that they are responsive and breathing, look and check for any signs of severe bleeding. If they are bleeding severely you will need to control and treat the bleeding by applying direct pressure to the wound.
Call 112 for emergency help. If they are unresponsive and breathing but with no bleeding, put them in the recovery position and call 112 for emergency help. Once you have completed your primary survey and have treated any life-threatening conditions you can move on to the secondary survey.
Place two fingers on the brachial artery applying slight pressure for 3 to 5 seconds. If you do not feel a pulse within that time, then the infant's heart is not beating, and you will need to perform chest Compressions