Bowel Sounds & NPO

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I was talking to a nurse during one of my clinicals regarding NPO and bowel sounds and he said something that confused me. In nursing school, we were taught that typically a patient in NPO would have hypoactive bowel sounds since there is no food to cause intestinal movement. However, the nurse I was speaking with said that the patient's bowel sounds would be hyperactive because they are hungry therefore you'll hear growling sounds.

I personally haven't heard a NPO patient with hyperactive bowel sounds. I'm not sure if I misunderstood him or what but has any of you experienced this? Is this right, wrong, common, rare?

Thanks

Specializes in NICU, ICU, PICU, Academia.

Patients who are NPO can have absent, hypoactive OR hyperactive bowel sounds depending on the situation.

Fresh abdomen post-op? Probably absent.

Resolving obstruction? Hypoactive.

Pancreatitis on gut rest but is hungry as all get-out? Hyperactive.

Specializes in NICU, ICU, PICU, Academia.

Too late to edit: NPO just means the doctor won't let you eat!

Specializes in Critical Care, ED, Cath lab, CTPAC,Trauma.

There are also times you will hear "tinkling/high pitched bowel sounds" They are produced by bowel becoming distended in response to peristalsis/ trying to move food and fluid along the bowel against a mechanical obstruction.

The NPO status really has no real impact on the Bowel sounds...the bowel sounds are based on the medical situation that is/was present.

I should have been more clear; I meant more on post-op. But your answers have been great, thank you!

Specializes in Emergency.
I should have been more clear; I meant more on post-op. But your answers have been great, thank you!

Typically post-op will be hypoactive. It's not always the case, though. :]

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