List everything that was done incorrectly.

A 45-year-old male presents with a positive medical history. He reports on the medical history that he has heart problems. As the dental treatment begins, the patient loses consciousness and goes into cardiac arrest. The doctor sends the auxiliary to the front to call for help while he goes to hook up the new oxygen cylinder that had arrived that morning. At the front desk, the assistant asks the receptionist to find the number for the emergency medical service. When the doctor and assistant return to the operatory, they begin two-person CPR with the patient in the dental chair.

What will be an ideal response?

Doctor and auxiliary leave the patient alone; oxygen is not set up; the number for the emergency unit is not posted; no hard backboard is placed to do CPR; and the patient is not moved to the floor for CPR.