Adult CPR is needed for whenever someone needs aid in breathing. Therefore, it can be any age that needs it, as long as the person has a certification in CPR for legal reasons. The word "adult" refers to at least age 18, so adult CPR is CPR for those 18 and over only.
when an adult victim is in a dangerous environment
Do not stop CPR to check for signs of life in Adult CPR. Continue CPR until help (EMS) arrives or someone takes over.
An adult of course.
Signs of breathing difficulty in adult CPR are wheezing, irregular, shallow, or gasping breaths.
Depending on the class you take, it can range from about 4 to 9 hours; 4 hours for Adult CPR and 9 hours for the BLS CPR (or CPR for the PRO).
If it's an adult, you should immediatly before CPR. If its a child, you should do CPR for 5 minutes and then call. It's approximately 2 Minutes for the infant or child. ~Jason, just passed his FirstAid/CPR Taining.
For lay CPR, no pulse check is required.
when an adult victim is in a dangerous environment
For giving CPR, an adult is defined as someone over the age of 12 by the American Red Cross.
Stays the same for Adult CPR 1 or 2 rescuer; 30 compressions to 2 breaths.
Once CPR is started for an adult, don't stop to check for signs of life. Continue CPR until EMS arrives to take over.
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.