Chest compressions are a vital part of resuscitation. For infants (under 1 year), use two fingers for compressions or encircle the chest with both hands and use thumbs. For children (1 year to puberty), use one or two hands based on the size of the child. Aim for a compression depth of at least one-third the anterior-posterior diameter of the chest, or about 1.5 inches (4 cm) for infants and 2 inches (5 cm) for children. The recommended compression rate is 100-120 compressions per minute.
