Quinn J, McDermott D, Stiell I, Kohn M, Wells G.

"Prospective validation of the San Francisco Syncope Rule to predict patients with serious outcomes."

Ann Emerg Med. 2006;47(5):448-54.

I➜ The San Francisco Syncope Rule, also abbreviated SFSR, is a simple clinical prediction rule for assessing the risk of adverse outcomes in patient who present with syncope or fainting.
A patient with one or more of the following measures is considered at high risk for a serious outcome:
- history of congestive heart failure
- hematocrit <30%
- abnormal ECG result
- complaint of shortness of breath
- systolic blood pressure <90 mm Hg during triage.

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