REMS (Rapid Emergency Medicine Score)
Rapid Emergency Medicine Score (Olsson 2004): an abbreviated-APACHE-II in-hospital-mortality score needing no labs — age, mean arterial pressure, heart rate, respiratory rate, SpO₂, and GCS give a 0–26 score.
Open the calculator → Runs in your browser. Data leaves only if you deliberately send a problem report from the interactive tool.
Example
- Age
- 80 years
- Mean arterial pressure
- 60 mmHg
- Heart rate
- 130 bpm
- Respiratory rate
- 30 breaths/min
- SpO₂
- 88 %
- Glasgow Coma Scale
- 10
Result: REMS 14/26 — high-risk (> 13) for in-hospital mortality.
The tool opens with these values already filled in. Replace them with your own.
What the result means
- Risk
- Low < 6, medium 6–13, high > 13 in-hospital mortality. A rapid ED prognostic estimate needing no labs; not a triage or disposition order.
What you enter
- Age
- Mean arterial pressure
- Heart rate
- Respiratory rate
- SpO₂
- Glasgow Coma Scale (3–15)
How this is calculated
- Points
- Abbreviated-APACHE-II bands: age 0–6; MAP, heart rate, respiratory rate, SpO₂, and GCS each 0–4 (total 0–26). Higher = worse; each 1-point rise carries an odds ratio ≈ 1.4 for in-hospital death.
Olsson T, Terent A, Lind L. Rapid Emergency Medicine Score: a new prognostic tool for in-hospital mortality in nonsurgical emergency department patients. J Intern Med. 2004;255(5):579-587. Read the source ↗
A reference and educational tool. Not medical, legal, or financial advice, and not a substitute for clinician judgment.