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Heart Murmurs Overview (Heart Murmur Series) Video

ACLS Certification Association videos have been peer-reviewed for medical accuracy by the ACA medical review board.

Video at a Glance

  • Heart murmurs are abnormal sounds heard while listening to the heart while using a stethoscope.
  • S1 is called “lub,” and S2 is called “dub.”
  • S2 is caused by the closing of the AV valves, while S2 is caused by the closing of the semilunar valves.
  • For heart murmurs, listen to when the abnormal sound is occurring.
  • Figure out where the murmur is most clearly and loudly heard.
  • The type of sound is also important in classifying heart murmurs.

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ACLS Certification Association (ACA) uses only high-quality medical resources and peer-reviewed studies to support the facts within our articles. Explore our editorial process to learn how our content reflects clinical accuracy and the latest best practices in medicine. As an ACA Authorized Training Center, all content is reviewed for medical accuracy by the ACA Medical Review Board.

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