Pulmonology medical calculators
All 21 Pulmonology medical calculators on DocMath, A–Z. All specialties
- Alveolar–arterial (A–a) oxygen gradientAlveolar oxygen tension from the simplified alveolar gas equation and the A–a gradient, to separate hypoventilation from gas-exchange causes of hypoxemia.
- BODE index (COPD)Multidimensional COPD grading (BMI, airflow obstruction, dyspnea, exercise capacity) that predicts all-cause and respiratory mortality better than FEV₁ alone.
- Bova score (normotensive pulmonary embolism)Risk of PE-related complications within 30 days in normotensive patients with acute symptomatic PE.
- Brock University (PanCan) lung nodule malignancy modelProbability that a lung nodule seen on CT is cancer (full model with spiculation, PanCan / Brock University, Canada).
- CURB-65 (community-acquired pneumonia severity)Mortality risk in community-acquired pneumonia assessed in hospital; guides place of care.
- DECAF score (hospitalized COPD exacerbation)Predicts in-hospital mortality in patients admitted with an acute exacerbation of COPD.
- Hestia criteria (outpatient treatment of pulmonary embolism)Bedside checklist of 11 exclusion criteria to select adults with acute PE for outpatient anticoagulation.
- LENT score (malignant pleural effusion survival)Predicts survival in malignant pleural effusion from pleural fluid LDH, performance status, blood neutrophil-to-lymphocyte ratio and tumor type.
- Light's criteria (pleural effusion: exudate vs transudate)Classifies a pleural effusion as an exudate if any one of three protein/LDH criteria is met.
- Ottawa COPD Risk Scale (emergency department)Risk of short-term serious outcomes in emergency department patients with an acute COPD exacerbation, to support disposition decisions.
- PAH four-strata risk (COMPERA 2.0 / ESC-ERS 2022 follow-up)Non-invasive risk category in pulmonary arterial hypertension from WHO functional class, 6-minute walk distance and BNP or NT-proBNP, mainly at follow-up on treatment.
- PERC rule (Pulmonary Embolism Rule-out Criteria)Rules out PE without D-dimer testing when clinical suspicion is already low.
- PESI (Pulmonary Embolism Severity Index)30-day mortality risk in confirmed acute PE; identifies low-risk patients for outpatient care.
- RAPID score (pleural infection)Risk of death at 3 months in adults with pleural infection, from renal function (urea), age, fluid purulence, infection source and albumin.
- Revised Geneva score for pulmonary embolismStandardised clinical pretest probability of PE using only objective clinical items.
- ROX index (high-flow nasal oxygen outcome)Predicts success or failure (need for intubation) of high-flow nasal cannula oxygen in pneumonia with acute hypoxaemic respiratory failure.
- Simplified PESI (sPESI)Six-item version of PESI for 30-day mortality in confirmed acute PE.
- STOP-Bang questionnaire (obstructive sleep apnoea)Screens adults for obstructive sleep apnoea, e.g. before surgery.
- Wells score for deep vein thrombosisClinical pretest probability of lower-limb DVT, used with D-dimer and ultrasound.
- Wells score for pulmonary embolismClinical pretest probability of pulmonary embolism, used with D-dimer to decide on imaging.
- YEARS algorithm (suspected PE)Excludes PE using three clinical items with a D-dimer cut-off that depends on them.