1. Functional Classification of Heart Disease:
Answer
Class I: No Limitation. Ordinaryphysical activity does not cause undue fatigue, dyspnea,
palpitation, or angina discomfort.
Class II: Slight limitation.Comfortable at rest, but ordinary physical activity results in
symptoms of fatigue, dyspnea, palpitations, or angina discomfort.
Class III: Marked limitation. Comfortable at rest, but less than ordinary activitycauses
symptoms of fatigue, dyspnea, palpitation, or angina discomfort.
Class IV: Unable to engage in any physical activity without discomfort, and symptoms of
cardiac insufficiency are present at rest.
2. S1:
Answer
Closing of mitral valve with the tricuspid valve(atrioventricular valves)
The beginning of systole.
3. S2:
Answer Closing of the aortic valve and pulmonic valve.(semilunar valves)
4. Slit S2:
Answer
may be heard in the second and third left interspaces during inspiration.
Fixed S2 split: atrial septal defect and right ventricular failure.
Wide S2 split: Delayed closure of the pulmonic valve, pulmonic stenosis and RBBBor
early closure of the aortic valve in mitral regurgitation.
Paradoxical splitting of S2: occurs only on expiration and is associated with delayedclosure
of the aortic valve, LBBB
5. Split S1:
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