What is the correct functional class for the following descriptions:
1. Patients with cardiac disease that results in marked limitation of physical activity. Patients are comfortable at rest, but less than ordinary activity leads to symptoms.
2. Patients with cardiac disease that results in slight limitations of physical activity. Ordinary physical activity results in fatigue, palpitations, dyspnea, and angina.
3. Patients with cardiac disease that results in inability to carry on physical activity without discomfort. Symptoms of HF present even at rest.
4. Patients with cardiac disease but without limitations of physical activity. Ordinary physical activity does NOT cause undue fatigue, dyspnae, or palpitations.
- 1. Class III
- 2. Class II
- 3. Class IV
- 4. Class I