NYHA Functional Classification Calculator
Classifies the severity of heart failure based on symptoms and physical activity limitations.
Medical Specialty:
cardiology
FOR PROFESSIONAL USE ONLY
This calculator is a support tool intended exclusively for health professionals. It does not replace clinical judgment. The final decision regarding diagnosis and treatment is the sole responsibility of the professional.
About this Calculator 💡
The NYHA (New York Heart Association) Functional Classification is a widely used system to classify the severity of heart failure based on patient symptoms and their limitation during physical activity. It categorizes patients into four classes: Class I (no limitation of physical activity), Class II (slight limitation, with symptoms on ordinary physical exertion), Class III (marked limitation, with symptoms on minimal physical exertion), and Class IV (symptoms at rest, with inability to carry on any physical activity without discomfort).
Formula
Clinical assessment of functional capacity in 4 classes
Reference
- The Criteria Committee of the New York Heart Association. Nomenclature and Criteria for Diagnosis of Diseases of the Heart and Great Vessels. 9th ed. 1994.