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S5
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[[File:Airmen perform flight medicine exams 120502-F-YG608-005.jpg|300px|thumb|left]]
'''S5''' is the fifth [[Anatomy of the Heart|heart sound]], the "schwa" of "lub-dub-schwa," or "phle" in "phle-bi-tis." It is very difficult to identify an '''S5''' and often requires putting the patient in a reverse headstand position. An '''S5''' is easily mistaken for the [[F5]], a vicious [[Physical Exam|physical exam]] maneuver.
[[Category:Physical Exam]]
[[Category:Cardiology]]
