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ABC-AF Bleeding ScoreABC-AF Stroke ScoreABCD2 ScoreADD-RSAortic Valve Calcium ScoreAPPLE ScoreASCVD (Pooled Cohort)AVA (Continuity Equation)BAG-AHF ScoreBiplane Simpson EFBlood Pressure PercentilesBrugada Criteria (VT vs SVT)Cardiac Output IndexCHA2DS2-VAScCHADS2Cornell Voltage CriteriaCRUSADE Bleeding ScoreDAPT ScoreDASIDuke Treadmill ScoreE/A RatioEDACS ScoreEHMRGEHRA ScoreEmbolic Risk ScoreEROA (PISA Method)FFR (Fractional Flow Reserve)Fick Cardiac OutputFramingham 10-Year RiskFriedewald LDL EquationGorlin EquationGRACE ScoreGupta MICA (NSQIP)GWTG-HF ScoreH2FPEF ScoreHakki FormulaHAS-BLEDHEART PathwayHEART ScoreHEMORR2HAGEShs-Troponin 0h/1h ESC AlgorithmiFRINTERCHEST ScoreKillip ClassificationLee's RCRILV Mass IndexLV Stroke Work IndexMAGGIC Risk ScoreMAP CalculatorMartin/Hopkins LDLModified Duke CriteriaModified Sgarbossa CriteriaMVA (Pressure Half-Time)Non-HDL CholesterolNT-proBNP Age-Adjusted ThresholdsORBIT ScoreOttawa Heart Failure RiskPREVENT EquationsPulse PressurePVR CalculatorPVR IndexQRISK3QTc (Bazett)QTc (Fridericia)REVEAL 2.0 ScoreREVEAL Lite 2Reynolds Risk ScoreROSIRVSP CalculatorSchwartz Score (LQTS)SCORE2Seattle Heart Failure Model (SHFM)Sgarbossa CriteriaShock IndexSokolow-Lyon VoltageStroke Volume IndexSVR CalculatorSYNTAX ScoreSYNTAX Score IITAPSETeichholz FormulaTIMI (STEMI)TIMI (UA/NSTEMI)Troponin Delta CalculatorValvular GradientsVancouver Chest Pain RuleVereckei AlgorithmWATCHDM ScoreWilkins ScoreWood Units Calculator
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Clinical Notice:OpiCalc is not a substitute for professional clinical judgment. Always verify dosages and guidelines.

OpiCalc Š 2026

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ORBIT Score

ORBIT Score: Outcomes Registry for Better Informed Treatment. Predicts bleeding risk in patients with Atrial Fibrillation.

Anemia

Hb < 13 g/dL (men) or < 12 g/dL (women).

Bleeding History

Prior major bleed or gastrointestinal bleed.

Antiplatelet Therapy

Taking Aspirin, Clopidogrel, etc.

Guidelines & Evidence

Verified

Last Review: 2026-07-17

When to Use

How it Works

Clinical Pearls

Next Steps

The Evidence

Origins & History

Last Comprehensive Review: 2026-07-17

Recent Journal Updates

WHO NewsJul 2, 2026
WHO adds first diagnostic test for Ebola Bundibugyo virus to its Emergency Use Listing

Clinical Context

We think this has broad domain relevance to ORBIT Score.

BJOGJun 25, 2026
Indications and Efficacy of Progestogen‐Monotherapy as Menopause Hormone Therapy: A Narrative Review

Clinical Context

We think this has broad domain relevance to ORBIT Score.