When to clamp an NG tube?

Looks appropriately horrified (from youtube.com)
Looks appropriately horrified (from youtube.com)

“Clamping” an NG tube is done to determine if a patient can safely have an NG tube removed. Here’s how to decide:

When the patient has had less than 200 cc of output over an 8-hour shift, you can attempt the clamping trial!

Check on the patient in 4 hours, and release the clamp and turn on suction to see how much residue comes rushing out. If the output is less than 100-200 cc  then you can remove the NG tube and start the patient on clears.

From: Flashcard Machine 


2 thoughts on “When to clamp an NG tube?

  1. Good tip. Surgery intern here, small twist though same concept: We usually clamp for 6h, our hard cut-off at our institution is if there is <200cc after a 6h clamp then that is a "pass," the NGT may be removed. We start slow with sips of clears then advance to CLD, and so on. Of course varies with every pt and different clinical scenarios for SBO/LBO. Hope that helps


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