Final answer:
The ratio of compressions to ventilations in an adult, two-person scenario for CPR is 30 compressions to 2 ventilations.
Step-by-step explanation:
The ratio of compressions to ventilations in an adult, two-person scenario is 30 compressions to 2 ventilations.
During CPR, the American Heart Association recommends performing chest compressions at a rate of 100-120 compressions per minute. After 30 compressions, two ventilations (breaths) should be provided. This ratio allows for effective oxygenation of the blood and circulation.
It's important to note that this ratio may vary depending on the specific guidelines and protocols followed by healthcare professionals and organizations.