Emergency Medicine · Cardiology
San Francisco Syncope Rule calculator
Enter the published formula inputs below to calculate and interpret this score.
Clinical inputs
Result
0
San Francisco Syncope Rule negative
No CHESS predictor is present; apply the result only within a complete syncope evaluation.
Formula inputs
- History of congestive heart failure
- Hematocrit <30%
- Abnormal ECG
- Shortness of breath
- Triage systolic blood pressure <90 mmHg
Primary source
Quinn JV et al. Derivation of the San Francisco Syncope Rule to predict patients with short-term serious outcomes. Ann Emerg Med (2004)
View source