Bowel Sounds | Signs - MedSchool
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Bowel Sounds

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Overview

    • How to Assess

    • Auscultate the abdomen for bowel sounds. First listen in one quadrant and if an abnormality is discovered then listen in each of the three other quadrants.
  • In order to be sure that bowel sounds are absent, it is important to listen for at least five minutes.
    • Interpretation

    • Gurgling sounds: movement of gas and fluid via peristalsisNormal
    • Borborygmi: loud rumbling sounds due to movement of air within the gutNormal
    • Hypoactive: diminished or absent bowel soundsPeritonitis, proximal obstruction, ileus, ischaemia
    • Hyperactive: extremely increased bowel soundsGastroenteritis, laxatives, IBD, bowel obstruction
    • Hollow, high pitched tinkles: similar to rain on a tin roof, due to liquid and gas under pressure within dilated gutCharacteristic of small bowel obstruction
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