HEART FAILURE-NYHA CLASSIFICATION

SUMMARY

1. Class I: cardiac disease does not limit physical activity. Patients can perform to completion any activity requiring ≥ 7 METs.
2. Class II: comfortable at rest & slight limitation of physical activity. Patients can perform to completion any activity requiring 5-7 METs.
3. Class III: comfortable at rest & marked limitation of physical activity. Patients can perform to completion any activity requiring 2-5 METs.

4. Class IV: symptoms present at rest & marked limitation of physical activity. Patients can perform to completion any activity requiring < 2 METs.

Reference(s)

Wilkinson, I., Furmedge, D. and Sinharay, R. (2017). Oxford handbook of clinical medicine. Oxford: Oxford University Press. Get it on Amazon.
Feather, A., Randall, D. and Waterhouse, M. (2020). Kumar And Clark’s Clinical Medicine. 10th ed. S.L.: Elsevier Health Sciences. Get it on Amazon.
Hannaman, R. A., Bullock, L., Hatchell, C. A., & Yoffe, M. (2016). Internal medicine review core curriculum, 2017-2018. CO Springs, CO: MedStudy.
Therapeutic Guidelines. Melbourne: Therapeutic Guidelines Limited. https://www.tg.org.au [Accessed 2021].