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Table

ClassDescription
IOrdinary physical activity, such as walking or climbing stairs, does not cause angina. Angina occurs with strenuous, rapid, or prolonged exertion at work or recreation.
IISlight limitation of ordinary activity. Angina occurs on walking or climbing stairs rapidly; walking uphill; walking or stair climbing after meals, in cold, or in wind; under emotional stress; only during the few hours after awakening; or walking more than two level blocks and climbing more than one flight of stairs at a normal pace and in normal conditions.
IIIMarked limitation of ordinary physical activity. Angina occurs on walking one to two level blocks and climbing one flight of stairs in normal conditions at a normal pace.
IVInability to carry on any physical activity without discomfort—angina symptoms may be present at rest.

SOURCE: Campeau, L: Grading of Angina Pectoris [letter]. Circulation 54(3), 522. Copyright 1976, American Heart Association.