(b) Chest compressions on an infant should be administered with the
tips of the middle and ring fingers. Press straight down so that the sternum is
depressed from 1/3 to 1/2 the total depth of the chest (1/2 to 1 inch).
Repeat the compressions at a rate of at least 100 per minute.
(d) Compressions should be smooth, not jerky. Allow the chest to
return to its resting position after each thrust, but do not remove your fingertips from the
compression site. The thrust and the relaxation parts of the compression should be of
c. Administer Two Breaths. After administering the thirtieth compression,
administer two slow ventilations. Observe the casualty's chest out of the corner of your
eye. Blow just enough air into the casualty's airway to expand his lungs fully.
(1) If possible, seal your mouth over the casualty's mouth and nose and
(2) If the casualty is an infant, do not remove your fingers from the
compression site on his chest. Use only one hand to maintain the infant's airway
(fingers on the forehead if the modified head-tilt/chin-lift is used or fingers under one
angle of his jaw if the jaw-thrust is used).
Perform four more cycles of 30 compressions and two ventilations.
(1) If the casualty is a child, you should be able to visually relocate the
compression site after each set of ventilations without having to repeat the procedures
listed in paragraph 4-1d.
(2) If the casualty is an infant, your fingers should still be on the
compression site, thus eliminating the need to relocate the site.
e. Check Pulse. After five cycles, check the casualty's pulse again. The check
should not take longer than 5 seconds. As you check the pulse, also check for
(1) If the casualty has a pulse and he has resumed breathing on his own,
stop administering CPR and begin checking for other injuries. Keep the airway open
and check his breathing every few minutes if he does not regain consciousness.
Resume administering rescue breathing or CPR if he stops breathing.