Table 3 -.

Clinical scenario and arrest characteristics of subjects found to have cervical spine injuries.

Clinical Scenario	Arrest Details	CT Cervical Spine Findings
73-year-old male found unresponsive in home bathroom after subject’s roommate heard a “thud.” Found in cardiac arrest by EMS.	Unwitnessed collapse, no bystander CPR, PEA initial rhythm, 4 milligrams epinephrine, no defibrillation, 37 minutes of CPR.	C4 superior endplate pathologic fracture with evidence of neoplasm/multiple myeloma.
83-year-old male found unresponsive at his nursing facility noted by EMS to be in cardiac arrest.	Unwitnessed collapse, PEA initial rhythm, 13 milligrams epinephrine, no defibrillation, 67 minutes of CPR.	Questionable acute C3 and C4 vertebral body fractures.
73-year-old female unwitnessed fall off of toilet. Transferred by EMS to ED. Has cardiac arrest in CT scanner.	ED arrest, PEA initial rhythm, 3 milligrams epinephrine, no defibrillation, 11 minutes of CPR.	Acute fractures of C1 right posterior arch and C5 left posterior lamina.
78-year-old male found unresponsive with inhaler in his hand. Found in cardiac arrest by EMS.	Unwitnessed collapse, no bystander CPR, asystole initial rhythm. Epinephrine dose, defibrillations, and CPR duration not reported.	Acute fracture C2 anterior inferior vertebral body.