Shock index
Heart rate divided by systolic blood pressure.
Inputs
0 of 2bpm
mmHg
When to use
- Trauma, hemorrhage, sepsis, obstetric hemorrhage.
Pearls and pitfalls
- Above about 0.9 to 1.0 suggests significant shock in adults; obstetric thresholds differ.
Why use
Instant, with interpretation.
- where
- HR
- Heart rate, bpm
- SBP
- Systolic pressure, mmHg