about every 2 minutes
They should provide breaths for the infant every 5 seconds.
You should stand back as the AED analyzes the patient.
Switch when the person giving compressions is getting tired.
Since 2005 the American Heart Association has recommended that bystanders trained in CPR should NOT be checking a pulse. If an unresponsive patient is not breathing rescuers should start compressions. Professional rescuers like paramedics, nurses, and doctors still check a pulse. Pulse checks should never last longer than 10 seconds. For more information you should take an American Heart Association CPR class form a reputable company like The Heart Center.
With 2 rescuers, compressions and ventilations should be done at a ratio of 15:2 for an infant or child.
Do not stop CPR to check for a pulse.
30:2
In a two-rescuer CPR scenario, the recommended ratio of breaths to chest compressions is 30:2 for adult patients. However, when performing CPR on infants and children, the ratio is adjusted to 15:2. The rescuers should switch roles every five cycles or about every two minutes to prevent fatigue and maintain effective compressions.
The correct compression-to-breath ratio for CPR in adults is 30 compressions followed by 2 rescue breaths. This applies to both single-rescuer and two-rescuer CPR scenarios. For infants and children, the same ratio is typically used for single rescuers, but two rescuers should use a 15:2 ratio. It's important to focus on high-quality chest compressions at a rate of 100 to 120 compressions per minute.
Some AEDs after the pads are attached you plug in the pads before the AED will analyze; some the pads are attached to the AED and you need to push the analyze button. At this point, do not touch the patient. So, the best answer to me is "the rescuers should make sure the AED is analyzing and do not touch the patient".
Do not stop CPR to check for signs of life in Adult CPR. Continue CPR until help (EMS) arrives or someone takes over.
When two rescuers are preforming CPR on a child, the compression to breath ratio is 15:2. That is 15 compressions 1-1.5" deep at a rate of 100 compressions a min. Each rescue breath should last about one second and make the chest clearly rise. The cycle is then repeated, fifteen compressions and two breaths. The rescuers should change positions about every 2min or about 10 cycles.