Strangely enough I saw two people in the last few weeks sent to neuro from cardio admitted for syncope, both had negative scans, and both ended up with cardiac etiology dx after negative scanning.
Consulted neuro on this today.
Apparently the purpose of a scan for syncope in young adults is to rule out a neoplastic disease or a vascular anomaly. (malformation, arteritis, etc)
As I understand, the scan is performed even if a cardiac dx is suspected prior to the CT and the neurologist I spoke with said he had never seen a case where a young person presented with syncope instead of seizure in a neoplastic disease nor a syncope without total loss of consciousness in a ruptured AV malformation (aka bleed) in his career. (at a large academic facility)
I am guessing it was a BLS transfer because nothing prior to transport indicated an impending problem and likely a nondiagnostic CT was expected.
(Or maybe a diagnostic was hoped for so cards wouldn't get the patient back in the spirit of punting on first down )