JRC JFS-280 Instruction Manual page 12

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8. Cardiopulmonary resuscitation (CPR) (combination of chest
compressions and rescue breaths)
a) Chest compressions
1) Position of chest compressions
- Position the heel of one hand in the center of the chest,
approximately between the nipples, and place your other hand on top
of the one that is in position.
2) Perform chest compressions
- Perform uninterrupted chest compressions of 30 at the rate of about
100 times per minute. While locking your elbows positioning yourself
vertically above your hands.
- With each compression, depress the chest wall to a depth of
approximately 4 to 5 cm.
b) Combination of 30 chest compressions and 2 rescue breaths
1) After performing 30 chest compressions, give 2 rescue breaths. If
rescue breathing is omitted, perform only chest compressions.
2) Continuously perform the combination of 30 chest compressions
and 2 rescue breaths without interruption.
3) If there are two or more first-aiders, alternate with each other
approximately every two minutes (five cycles of compressions and
ventilations at a ratio of 30:2) without interruption.

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