Clinical Tests & Validated Calculators
Browse our library of published screening questionnaires, severity instruments, and deterministic medical calculators. Filter by specialty, clinical category, audience, or tool type.
PHQ-9
Patient Health Questionnaire-9
Validated 9-item screening and severity measure for depressive symptoms over the preceding two weeks.
PHQ-2
Patient Health Questionnaire-2
Ultra-brief two-item first-step depression screener evaluating anhedonia and depressed mood.
GAD-7
Generalized Anxiety Disorder-7
Validated 7-item instrument for screening and measuring the severity of generalized anxiety disorder.
AUDIT-C
Alcohol Use Disorders Identification Test - Consumption
Validated 3-item alcohol screen that reliably identifies hazardous drinkers and active alcohol use disorders.
BMI & BSA Calculator
Body Mass Index & Body Surface Area Calculator
Clinical calculator for Body Mass Index (WHO/CDC) and Mosteller Body Surface Area.
CHA₂DS₂-VASc
CHA₂DS₂-VASc Score for Atrial Fibrillation Stroke Risk
Validated clinical risk score predicting annual thromboembolic stroke risk in non-valvular atrial fibrillation.
Wells Criteria for DVT
Wells Clinical Prediction Rule for Deep Vein Thrombosis
Validated diagnostic decision rule stratifying the pre-test probability of lower-extremity deep vein thrombosis.
CURB-65
CURB-65 Severity Score for Community-Acquired Pneumonia
Validated clinical prediction rule determining 30-day mortality and triage for community-acquired pneumonia.
eGFR (2021 CKD-EPI)
Estimated Glomerular Filtration Rate (2021 CKD-EPI Creatinine Equation)
Race-free equation recommended by NKF and ASN to estimate renal glomerular filtration rate from serum creatinine.