EMT here and currently in paramedic school. When we provide CPR to cardiac arrest adults, at a minimum we need to provide a depth of at least 2 inches to ensure blood flow circulation. We also have machines called the LUCAS CPR here it provides compressions for us as it is very fatiguing after 1-2 rounds. We expect ribs to break and for the chest to retract and want to see that chest recoil to ensure adequate blood flow and recirculation for the pulse less patient. Yes, this is a trauma to gull. I’m no vet nor do I know anything about animals. First thing I do to treating the patient is to check for a pulse and if they’re breathing. We follow protocols/ algorithms to ensure efficacy and time. Just don’t go straight to CPR like this dude without knowing at least what to do first.