Characteristics: - Soft, less than 3/6 in intensity (although note that even when structural heart disease is present, intensity does not predict severity.)> Often position-dependent (Murmurs heard while supine and may disappear when upright or sitting.)> Otherwise healthy individual, no concerns about growth, no symptoms of heart failure such as dyspnea on exertion. (In infants, ask if the baby tires during feeding, becomes diaphoretic, or develops a rapid respiratory rate. In older children, this can be elucidated by asking whether or not the child can keep up with peers during play.)> Occurs during systole or continuously during both systole and diastole. (Murmurs occurring only during diastole are always pathologic.)> Physiologic splitting of S2 (A2 and P2 components should only be resolvable during inspiration and should merge during expiration.)> No palpable thrill (A thrill is a vibration caused by turbulent blood flow.)">