Congestive Heart Failure
Hematocrit <30% (Hb<90)
Shortness of Breath
Systolic Blood Pressure <90 mmHg at triage
Positive: One of criteria above
Negative predictive value for serious outcome 99.2%
Quinn JV, Stiell IG, McDermott DA, Kohn MA, Wells GA.
Derivation of the San Francisco Syncope Rule to predict patients with short-term serious outcomes.
Quinn (2004) Ann Emerg Med 43:224-32
Quinn JV, McDermott DA, Stiell IG, Kohn MA, Wells GA.
Prospective validation of the San Francisco Syncope Rule to predict patients with serious outcomes.
Ann Emerg Med. 2006 May;47(5):448-54.
Richard Pearson 2014