CHEST THRUST RECLINING TECHNI-
QUE. Kneel at either side, and place your hands
on the chest in exactly the same manner as for
external chest compression (fig. 4-9). Give four
quick downward thrusts with the arms.
If unsuccessful, repeat the four chest thrusts
until the obstruction is dislodged.
The second aspect of basic life support is to
restore breathing in cases of respiratory arrest.
Failure of the breathing mechanism maybe caused
by various factors. They include complete airway
obstruction, insufficient oxygen in the air, the in-
ability of the blood to carry oxygen (carbon
monoxide poisoning), paralysis of the breathing
center of the brain, and external compression of
the body. Breathing failure is usually, but not
always, immediately accompanied by cardiac ar-
rest. Periodic checks of the carotid pulse must be
made, and you must be prepared to start car-
diopulmonary resuscitation (CPR).
The signs of respiratory arrest are an absence
of respiratory effort, a lack of detectable air
movement through the nose or mouth, uncon-
sciousness, and a cyanotic discoloration of the lips
and nail beds.
The purpose of artificial ventilation is to pro-
vide a method of air exchange until natural
breathing is re-established. Artificial ventilation
should be given only when natural breathing has
been suspended; it must not be given to a person
who is breathing naturally. Do not assume that
a persons breathing has stopped merely because
the person is unconscious or has been rescued
from water, from poisonous gas, or from con-
tact with an electric wire. Remember: DO NOT
GIVE ARTIFICIAL VENTILATION TO A
PERSON WHO IS BREATHING NATU-
RALLY. If the victim does not begin spontaneous
breathing after using the head tilt or jaw thrust
techniques to open the airway, attempt to use ar-
tificial ventilation immediately. If ventilation is
inadequate, use the thrust techniques to clear the
airway, followed by another attempt at artificial
To perform mouth-to-mouth ventilation,
place one hand under the victims neck and place
Figure 4-9.Position for reclining chest thrust.
Figure 4-10.Mouth-to-mouth ventilation.