Studies have found that compression only is more effective, so 1 compression to zero ventilations is the correct ratio. If the person's heart is beating, then you can worry about respiration. If not, keep the blood circulating and let respiration worry about itself (there will be some gas exchange in the lungs even without it, and if you're compressing a person's chest, you're going to be compressing their lungs somewhat anyway, and even without both of those factors, there's quite a bit of dissolved oxygen in the blood; the really critical thing is to make sure that the brain ... which uses it pretty quickly ... doesn't use up the local supply and start to die off).
For an adult, 2-rescuer CPR compression to breath ratio is the same as 1-rescuer; 30 compressions to 2 breaths.
the same as for 1 person CPR 30:2 (Compression:Breaths)
The compression ratio for 2 rescuer neonatal CPR is 3 compressions, 1 breath.
It has been found that for adults, compressions is the key factor.
It is the same for 1-rescuer CPR Adult, Child, and Infant: 2 ventilations to 30 compressions.
30 compressions to 2 vents, for a single person, lay rescuer.
Stays the same for Adult CPR 1 or 2 rescuer; 30 compressions to 2 breaths.
What is the compressions to breath ratio for 1-rescuer on infant
1 rescuer CPR for infant is 30 compressions to 1 breath.
30 compressions 2 breaths. Per 2010 AHA guidelines. Compression only CPR can be performed if no barrier device is present.
30 pushes (also called compressions) and 2 breaths for an Adult, Infant, or Child.
1 rescuer CPR is 30 compressions to 1 breath.