Emergency medicine medical calculators
All 14 Emergency medicine medical calculators on DocMath, A–Z. All specialties
- Alvarado score (MANTRELS) for acute appendicitisEight-item diagnostic score (0–10) for suspected acute appendicitis from symptoms, signs and the white cell count.
- Appendicitis Inflammatory Response (AIR) scoreProbability of acute appendicitis (0–12) from symptoms, signs and inflammatory markers, to guide imaging, observation or surgical review.
- Canadian C-Spine RuleDetermines which alert, stable adults with blunt trauma need cervical spine imaging.
- Canadian CT Head RuleIdentifies which adults with minor head injury (GCS 13–15) need a CT head.
- Canadian Syncope Risk Score30-day risk of serious adverse events after ED assessment of syncope when no serious cause was found.
- GAP score (GCS, Age, Systolic BP — trauma)Simplification of MGAP without the mechanism term, predicting in-hospital death after trauma in patients 16 years and older.
- MGAP score (Mechanism, GCS, Age, Arterial Pressure — trauma)Simple prehospital or ED score predicting in-hospital death after trauma.
- NEXUS Chest and NEXUS Chest CT (blunt chest trauma imaging)One-way rules to identify adults (over 14 years) with blunt trauma who can forgo chest radiography (NEXUS Chest) or chest CT (CT-All, CT-Major).
- NEXUS low-risk criteria (cervical spine)Identifies patients with blunt trauma at very low risk of cervical spine injury who do not need imaging.
- Ottawa ankle and foot rulesIdentifies which adults with acute ankle injury need ankle and/or foot radiographs.
- Ottawa Knee RuleIdentifies which adults with acute knee injury need knee radiography.
- Ottawa Subarachnoid Hemorrhage RuleRules out subarachnoid hemorrhage in alert patients with acute non-traumatic headache peaking within 1 hour.
- Pittsburgh knee rule (knee radiography after injury)Decides whether a knee radiograph is needed after an acute knee injury; applicable at any age (pediatric data limited).
- Shock index, pediatric age-adjusted (SIPA)Age-adjusted shock index (heart rate ÷ systolic BP) for injured children aged 4–16 years.