Clinical scoring tools are part of daily medical practice. You calculate a NEWS2 on every ward round. You run a CHA₂DS₂-VASc before starting anticoagulation. You estimate a CURB-65 before deciding whether pneumonia needs admission. You compute a MELD before discussing a liver patient with hepatology. These calculations happen dozens of times per shift — and most clinicians do them on MDCalc, a separate app, or (worse) from memory.
iatroX now provides 84 clinical calculators — integrated into the same platform as your clinical AI co-pilot, adaptive Q-bank, and CPD tracking. One platform. One login. No ads. No pharmaceutical sponsorship. MHRA-registered.
What Is Included
The calculator library covers the scoring tools you actually use in UK clinical practice, organised by clinical domain.
Emergency and acute medicine. NEWS2 (National Early Warning Score 2), Glasgow-Blatchford Bleeding Score, PECARN head injury decision rule, CURB-65 for community-acquired pneumonia, Wells score for PE and DVT, Centor/FeverPAIN for sore throat, HEART score for chest pain, Canadian C-spine rule, Ottawa ankle and knee rules.
Hepatology. MELD (Model for End-Stage Liver Disease), MELD-Na (sodium-corrected), Lille score for alcoholic hepatitis steroid response, Child-Pugh classification, Maddrey Discriminant Function, GAHS (Glasgow Alcoholic Hepatitis Score), FIB-4 index for liver fibrosis.
Intensive care. SOFA (Sequential Organ Failure Assessment), APACHE II, qSOFA for sepsis screening, Glasgow Coma Scale, Richmond Agitation-Sedation Scale (RASS), CAM-ICU for delirium screening.
Cardiology. CHA₂DS₂-VASc for atrial fibrillation stroke risk, HAS-BLED for bleeding risk on anticoagulation, QRISK3 for cardiovascular risk assessment, Framingham risk score, TIMI risk score.
Renal. CKD-EPI eGFR (2021 equation), Cockcroft-Gault creatinine clearance, KDIGO AKI staging.
Respiratory. CURB-65, MRC dyspnoea scale, Centor criteria.
Psychiatry and neurology. PHQ-9 (depression severity), GAD-7 (anxiety severity), MMSE, AUDIT-C (alcohol screening), CAGE questionnaire.
General and primary care. BMI, body surface area, corrected calcium, anion gap, osmolality gap, Parkland formula for burns, ABCD2 for TIA risk stratification.
The full library covers 84 tools with more being added. Each calculator includes the validated scoring algorithm, a clinical interpretation band, and relevant guideline references.
How They Work
Every calculator uses dynamic inputs matched to the scoring tool's requirements. Input types include numerical fields (with validation ranges and unit conversion where applicable), select dropdowns (for categorical variables like GCS components), boolean toggles (present/absent findings), and radio buttons (for ordinal scales like NEWS2 respiratory rate bands).
Unit conversion. Parameters that can be expressed in multiple units (creatinine in µmol/L vs mg/dL, bilirubin in µmol/L vs mg/dL, weight in kg vs lb) include automatic unit conversion — enter the value in whichever unit your lab reports, and the calculator handles the conversion internally.
Server-side scoring. Calculations are performed server-side using validated scoring algorithms — not JavaScript approximations in the browser. This ensures consistency, auditability, and the ability to update scoring algorithms centrally when validated changes are published.
Interpretation bands. Results are displayed with colour-coded interpretation bands — green (low risk / normal), amber (moderate risk / monitor), red (high risk / escalate). Each band includes clinical guidance: what the score means, what action is recommended, and which guideline the recommendation references. This is not just a number — it is a clinical decision support output.
Integration: One Platform, Not Five Tabs
The practical value of iatroX calculators is not that they calculate scores (MDCalc does that too). It is that they sit within the same platform as your clinical AI, your Q-bank, and your CPD tracking.
During a consultation, you use Ask iatroX to verify the current NICE management pathway for a patient with AF. You need a CHA₂DS₂-VASc score. You open the calculator — same platform, same tab. The score is 4. Ask iatroX confirms the recommendation: offer anticoagulation (NICE NG196). You log the interaction as CPD. One workflow. One login. Zero context-switching.
During exam preparation, you encounter an AKT question about CURB-65. You are not sure of the scoring thresholds. You open the calculator, enter the values, and see the score with interpretation. The learning is immediate and contextual — you are not switching to MDCalc, losing your Q-bank session, and then trying to find your place again.
Clinical Scenarios Where Calculators Save Time
On-call acute medicine. A 68-year-old presents with a GI bleed. You need a Glasgow-Blatchford score to determine whether this patient can be managed as an outpatient or needs admission. You open the calculator on your phone, enter the haemoglobin, urea, systolic BP, heart rate, and clinical features — the score is 8 (high risk, admit). The interpretation band confirms: "Score ≥6 — high risk of requiring intervention. Admit for endoscopy." Decision made in 30 seconds. No mental arithmetic. No risk of misremembering the threshold.
GP surgery. A 52-year-old man with newly detected AF attends for a review. You need to calculate CHA₂DS₂-VASc and HAS-BLED before discussing anticoagulation. Both calculators are in the same platform — enter the variables for each, receive the scores with NICE-referenced interpretation, and discuss the results with the patient. The calculator output is clear enough to share on-screen during a shared decision-making conversation.
Foundation training. An FY1 on a respiratory ward needs to calculate a CURB-65 for a new pneumonia admission at 2am. The scoring thresholds are in a textbook somewhere — or they are on your phone in iatroX, with the interpretation band confirming whether this patient needs ward-based care, HDU consideration, or ICU review. At 2am, removing the cognitive load of recalling scoring thresholds from memory is not laziness — it is patient safety.
For Exam Preparation
Clinical scoring tools are directly tested in multiple UK medical exams. The MRCGP AKT tests QRISK3 interpretation, CHA₂DS₂-VASc thresholds, and CURB-65 management decisions. MRCP Part 1 tests MELD scoring, Child-Pugh classification, and APACHE II interpretation. UKMLA tests NEWS2, Wells score, and FeverPAIN. Having the calculators integrated into the same platform as your Q-bank means you can verify scoring thresholds immediately when they appear in exam questions — building durable memory through contextual, active retrieval rather than passive re-reading of a scoring table.
iatroX vs MDCalc
MDCalc is the market leader in clinical calculators — used by millions of clinicians worldwide. It is a good tool. It is also a standalone tool with pharmaceutical advertising, US-contextualised content, and no integration with clinical AI, Q-banks, or CPD tracking.
iatroX calculators are UK-contextualised (NICE-referenced interpretation, UK units as default), ad-free (no pharmaceutical sponsorship), and integrated (same platform as Ask iatroX, Q-bank, and CPD). For UK clinicians, the contextualisation matters — a CHA₂DS₂-VASc interpretation that references NICE NG196 is more directly useful than one referencing ACC/AHA guidelines. A CURB-65 interpretation that recommends admission thresholds aligned with UK practice is more actionable than one calibrated to US emergency department workflows.
The ad-free distinction is not trivial. MDCalc displays pharmaceutical advertising — sponsored calculators, branded content, and promotional banners. In a clinical environment, particularly during shared decision-making consultations where a patient might see your screen, an ad-free clinical tool removes the perception of commercial influence. For NHS governance purposes, an MHRA-registered, ad-free calculator integrated into a regulated clinical decision support platform is a stronger governance position than a standalone US tool with pharmaceutical advertising.
For clinicians already using iatroX for clinical AI reference or exam preparation, the calculators add zero friction — they are already in the platform you use daily. No additional app. No additional login. No additional cost.
Explore the full calculator library at iatrox.com/calculators.