CPR for the lay person, denoted just CPR, there is no longer a pulse check for an adult, so once CPR is started, it will be continued unless the person begins to show signs of life.
In CPR-FPR (CPR for the Professional Rescuer) there is still a circulation check, so RB at 1 breath / 5 seconds is part of that certification.
To specifically answer your question, most people would do CPR and not check for a pulse on an adult, because it is not part of the curriculum.
For a professional person, they would perform rescue breathing with a pulse and CPR without a pulse.
The carotid artery, but this is only for an unconscious adult. For all other instances use the brachial artery located on the wrist.
The rescuer at the head performs the rescue breathing and checks the pulse during compressions to confirm they are effective.
Brachial
A regular adult pulse is 60-100.
The normal pulse range is 30-45 for an adult horse.
An infant in need of CPR will be unconscious, not breathing and have no pulse.
carotid pulse sight
If your pulse is 18 you're probably unconscious. An what it would be after walking would depend on how fit you are.
To check for a response from an unconscious person, start by gently tapping their shoulder and asking loudly, "Are you okay? Can you hear me?" If there is no response, try to assess their breathing and pulse. If they are not breathing or do not have a pulse, begin CPR and call for emergency medical assistance immediately.
When finding carotid artery, you are looking to check adult or child victim's PULSE
90
Their wrists and or their neck