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Tachycardia

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Listen for: Regular but fast. Diastole shortens until the two pauses sound almost equal. Count the beats in the 15-second clip and multiply by 4: over 100 per minute.

Usually means: A fast regular rate; the cause (fever, pain, anaemia, thyroid, arrhythmia) is found clinically.

8 recordings of this finding. Compare with normal heart sounds to hear the difference.

References1
  1. Bickley LS, Szilagyi PG, Hoffman RM, Soriano RP. Bates' Guide to Physical Examination and History Taking. 13th ed. Philadelphia: Wolters Kluwer; 2021. Cardiovascular system chapter.