Clinical calculators
Medical scores. Calculations run on your device, without sending your entries.
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A single entry prefills the 20 compatible scores; complete their criteria. The other 34 scores remain individually entered. No patient identity or input transmission. JavaScript is required for calculation.
- Glasgow
Assessment of consciousness, principally following traumatic brain injury; explicit E/V/M and NT.
- NEWS2
Physiological parameters, oxygen and flag for a parameter scoring 3.
- Wells — pulmonary embolism
Weighted criteria for clinical pretest probability of PE.
- Revised Geneva score
Original revised Geneva, eight variables and three levels.
- HEART
Five graded components; 2013 validation scoring system.
- CRB-65
Community-acquired pneumonia: four criteria without laboratory tests.
- CURB-65
Community-acquired pneumonia in hospital, with urea and units.
- Adult BMI
Body mass index from weight and height.
- PERC — pulmonary embolism
Eight criteria for clinical pretest suspicion of PE judged low.
- CHA₂DS₂-VA
Thromboembolic risk factors in AF, without a sex-related point.
- PRAM — paediatric asthma
Asthma exacerbation severity; silent chest correctly scored.
- 4AT — delirium screening
Delirium screening; not-testable items score according to the 4AT.
- PESI / sPESI
Prognosis after confirmation of pulmonary embolism.
- HAS-BLED
Bleeding risk factors in AF; table1 convention.
- Glasgow-Blatchford
Initial assessment of upper gastrointestinal bleeding.
- Westley — paediatric croup
Childhood croup severity; five observations.
- Ottawa rules
Imaging after acute trauma: ankle, midfoot or knee.
- PECARN — Head trauma
Two age branches of the paediatric algorithm after minor blunt head trauma.
- NIHSS — Neurological deficit
Fifteen standardised neurological components, explicit laterality and NT.
- Apgar score
Newborn condition at 1 and 5 minutes; independent observations and documented interventions.
- Silverman–Andersen
Neonatal work of breathing; five observable signs, comparison of three observations.
- Canadian CT Head Rule
Minor blunt head trauma ≥16 years; major then intermediate criteria of the original rule.
- NEXUS — Cervical spine
Five low-risk conditions; no added rotation or numeric threshold.
- Canadian C-Spine Rule
Three ordered steps; active rotation offered only when permitted.
- Centor / McIsaac
Clinical pharyngitis criteria; distinct Centor and McIsaac variants.
- PSI / Fine
Clinical class I then weighted scoring; 30-day CAP prognosis.
- PAS — Paediatric appendicitis
Eight criteria for suspected appendicitis in children aged 4–15 years.
- GRACE — In-hospital mortality
Eight initial variables; in-hospital mortality for ACS without persistent ST elevation.
- Wells — DVT
Pretest probability of lower-limb DVT; alternative diagnosis −2.
- SOFA / SOFA-2
Six clinical organ ratings, maxima over24h; distinct variants.
- Canadian Syncope Risk Score
After assessment of true syncope; serious events at30days.
- AIR — Adult appendicitis
Seven clinical and laboratory criteria; appendicitis probability.
- CDS — Paediatric dehydration
Four clinical signs of dehydration in gastroenteritis.
- EVENDOL — Childhood pain
Distinct rest/movement and before/after; five signs and threshold4.
- FLACC — Behavioural ratings
Five manual clinical ratings0–2; total without an invented threshold.
- EDIN — Prolonged neonatal pain
Preceding observation1–4h; five domains, no conflated threshold.
- DAN — Acute neonatal pain
Before, during and after a brief procedure; three domains0–10.
- ALGOPLUS — Acute geriatric pain
Five observable domains when self-report is impossible.
- BISAP — Acute pancreatitis
Initial prognosis of confirmed pancreatitis; five criteria over24h.
- YEARS
Three criteria and FEU D-dimer threshold; 2017 strategy excluding pregnancy.
- Killip–Kimball
Clinical heart failure class in acute myocardial infarction.
- RASS
Manual RASS rating −5 to +4; adult critical care.
- Padua
VTE risk in adult medical inpatients; threshold≥4.
- IGS II / SAPS II
Initial ICU severity · First 24 h collection.
- APACHE II
Initial severity ·12 variables, age, history ·24 h.