Upon examination of a child,an innocent systolic murmur is heard at the second intercostal space left sternal border.This is usually due to:

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Innocent systolic murmurs heard at the second intercostal space left sternal border are typically due to high flow turbulence. This is a common finding in children and is considered a benign finding without any underlying cardiac pathology. Atrial septal defect and patent foramen ovale may also present with a systolic murmur but typically have additional findings on physical exam or testing. Low flow velocity is not typically associated with innocent murmurs at this specific location.

Upon Examination of a Child,an Innocent Systolic Murmur Is Heard