Video of the woman being loaded into the ambulance does not seem to show any CPR being performed. It is possible that the caller confused "bagging" the patient (assisting with breathing" with CPR (trying to restore a heartbeat), and that this is just a case of respiratory arrest being addressed.
Since three staff followed -- believed to be a nurse, a doctor, and the office manager -- this seems to indicate attempts to retain control of a living patient. The office manager alone would suffice to do damage control for a dead patient.
I'm praying that this young woman is still alive and will recover.