[clnq]

It’s not enough to make a tangible difference. CPR isn’t close to ideal blood flow, and resuscitation generally fails. Movies paint a picture that it almost always succeeds, but it is closer to the opposite. Then, it’s possible to argue that whether the patient hears resuscitation being done to them or fruit names doesn’t matter much.

In the end, the depth of chest compressions in CPR in millimeters probably has a bigger effect on tissue death. But it’s very difficult to know what’s the ideal depth of a chest compression for each person in such a granular way, and it’s difficult for humans to do them so precisely. So it’s all rather imprecise.

The likelihood of a patient living goes from near 0% to perhaps 20% or 30% when they are resuscitated. But even that depends on very many things. No one can account for things like 1% or 0.1% tissue death in the process. The process is far too brute and imprecise.

This is my medschool exp although I didn’t go on to become a doctor or resuscitate anyone beyond simulations.