Positioning & Pulse Check
Correct positioning and a rapid pulse assessment help determine the appropriate BLS response.
Positioning
When CPR is required, position the person on their back on a firm, flat surface whenever practical. Kneel beside the chest so compressions can be delivered with proper body mechanics. Avoid unnecessary delays while repositioning the person.
Pulse Check
A trained BLS responder should assess for a pulse for no more than 10 seconds. If a definite pulse cannot be detected within 10 seconds, begin chest compressions. When checking the carotid pulse, use 2-3 fingers placed gently on the side of the neck — avoid using the thumb, which has its own pulse and can lead to an inaccurate reading.
Adult
Check the carotid pulse.
Child
Check the carotid or femoral pulse.
Infant
Check the brachial or femoral pulse.
Pulse Present but Breathing Inadequate
If the person has a definite pulse but is not breathing normally, provide rescue breathing.
For an adult:
- Give 1 breath every 6 seconds
- Recheck the pulse approximately every 2 minutes
For an infant or child:
- Give 1 breath every 2-3 seconds
- Reassess the pulse and condition approximately every 2 minutes
Pediatric Heart Rate Below 60
For an infant or child with a pulse less than 60 beats per minute with signs of poor perfusion despite adequate oxygenation and ventilation, begin chest compressions.
Do Not Delay CPR
If there is uncertainty about whether a pulse is present, begin chest compressions rather than prolonging the assessment.