3 If the two breaths caused the casualty's chest to rise and fall but
the casualty has not started breathing on-his own, feel for his carotid pulse. If there is
no pulse, begin chest compressions as described in Section III of this lesson.
4 If the casualty's heart is still beating and the casualty is not
breathing on his own, continue to perform-mouth-to-nose ventilations.
(e) Continue rescue breathing. If the casualty's heart is beating but he
is not breathing on his own, perform mouth-to-nose ventilations at a rate of one
ventilation every five seconds.
1. Take a deep breath.
2. Close the casualty's mouth.
3. Form a seal over his nose and force air into his nose.
4 Break the seal over the casualty's nose and allow him to exhale
(either open his mouth or separate his lips).
5 Check the casualty's pulse after every 12 ventilations. If the
pulse is absent, begin administering chest compressions.
6 Continue administering mouth-to-nose ventilations at a rate of
12 ventilations per minute until the casualty is breathing on his own, until you are
relieved by a qualified person, until a doctor tells you to stop, or until you are too
exhausted to continue rescue breathing.
7 If the casualty begins breathing on his own, monitor him in case
his breathing stops again.
8 When possible, evacuate the casualty for further evaluation and
treatment by a physician. If the casualty is not breathing on his own, continue
administering rescue breathing during the evacuation.
(3) Mouth-to-stoma rescue breathing. Follow the same procedures as for
mouth-to-mouth rescue breathing. The difference is that you place your mouth over the
neck opening instead of over the mouth, and you hold the mouth closed.