The steps are relatively easy to preform and remember. A pocket mask is recommended to prevent diseases from spreading. They are not needed in training or a real emergency but are for the safety for everyone. I will be doing the instructable as if you did have one though.
I will be adding links and pictures later along with some other notes and some edits if need be.
Things to know:
I may group sections differently than in the Red Cross book, the steps are the same.
Children are considered 12 to 1 years old by the American Red Cross.
If you are a life guard or are working in a job that life saving skills are needed do not leave the victim until someone else that can help arrives. This is called abandonment and you can be held legally responsible.
Step 1: Initial Assessment
Survey the scene to see if you are in danger of getting hurt yourself. This includes some obvious dangers like fire etc. There are also less obvious dangers like toxic fumes etc.
This is very important because you do not want to hurt yourself and add to the possible death toll. This also is for the safety of the victim because it could be harder for them to receive treatment too.
Check for consciousness. For adults and children you can do this by tapping, shaking, and asking if they are okay. For infants you can check by tickling the feet. If they do not respond they are considered unconscious. If conscious you will need to ask for content to help. But, the government considers consent to be implied when the person is unconscious.
If unconscious immediately call 911 or tell someone to call 911. This is very important if the victim goes into cardiac arrest and needs further treatment.
Check for breathing. To do this tilt the head back and put your ear to the victims mouth. Your face should be pointing down the victims body.
Step 2: Start Rescue Breathing.
Assemble your pocket mask or breathing barrier and place it over the victims nose and mouth. There should be a marking indicating nose on the mask. Place the nose under this on children and adults. For infants you should turn the mask upside down with the nose part on the chin. This creates a seal so air goes into the lungs.
Do two rescue breaths into the barrier each lasting about 1 second. If too much air is forced into the lungs it will go into the stomach and cause the victim to throw up. This is normal and resume operations. When the victim throws up turn him on his side and let vomit come out and clean the mouth out with your finger to prevent choking later.
If the chest does not clearly rise during the 2 rescue breaths tilt the head back further and do 2 more breaths. If the chest still doesn't rise the victim is choking and unconscious choking steps will need to be followed. http://www.instructables.com/id/S0TPBKYFTY4BX24/
Continue to page 3 if the chest rises.
Step 3: Continue rescue breathing.
Check for pulse. To do this place your ear over the mouth like before but position two fingers in the groove of the neck closest to you. This is for children and adults. For infants place finger in between the shoulder and elbow on the inside of the arm.
If there is no pulse the victim is in serious danger and you will need to start CPR after doing the next step. http://www.instructables.com/id/S1KNI59FU0HK6ZL/
Scan the area quickly for blood. You want check for a pulse no longer than 10 seconds every time you do this. You only need to scan for blood once and should only take a split second.
Step 4: Finish the steps.
Start rescue breathing. For adults you will do 1 breath every 5 seconds and for children and infants every 3 second. You do this for 2 minutes and check for a pulse again.
That means 40 breaths for children in 2 minutes and 24 for adults every 2 minutes. If any of the above things happen then you should or can stop. If not DO NOT STOP. The victim could go into cardiac arrest when they shouldn't and will make your job harder and their survival chance less.