To perform CPR for adults:
1. Approach the patient and ensure the scene is safe for both you and the patient
2. Give the patient a little shake or pull the earlobe (or similar), ask 'can you hear me' or similar
3. tilt the head back and open the mouth to check there is no obstruction
4. put your ear next to the patient's mouth, looking down their torso and look, listen and feel for breathing for no longer than 10 seconds
5. place one hand on top of the other, interlock your fingers, image a line drawn between the two nipples and place your hands on the centre of the chest in line with the nipples
6. press down about 4-5cm
7. repeat step 6 a further 29 times (so a total of 30 times)
8. if you feel up to it, give 2 ventilations by tilting the head back, pinching the nose and slowly breathing into the patient's mouth over about a second, checking that the chest rises
9. repeat from step 5 until additional help arrives or you are two tired to continue.
Note that in the recent guidelines, ventilations are considered optional. If you are performing chest compressions correctly, the rise of the chest when you lift your hands will draw air into the lungs.
CABD compression-airway-breathing-defibrillation
See the related link, step 3, on how to perform chest compressions on an adult.
See the related link which gives CPR in 3 simple steps.
Give 30 compressions and 2 breaths for each cycle of CPR.
Follow the steps in the related link.
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.
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.
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.
A CPR cycle is 30 compressions and 2 breaths, to be performed in 24 seconds.