Kohl’s GI Nutrition and Diagnostic Center

Impedance/pH Probe

An impedance/pH probe measures acid and non-acid reflux in the esophagus.

For the impedance/pH probe test, a thin tube with special sensors is inserted into your child’s nose and advanced into the esophagus. Gastroenterologists assess the presence of gastro esophageal reflux in your child by measuring if food or liquid is coming from the stomach back up into the esophagus.

You will be asked to keep a diary during your child’s study. It is important to keep a patient diary for two reasons: to obtain critical information about your child’s symptoms, meals and medications, and to ensure the probe’s function.

See about your child’s visit to help prepare your child for an impedance/pH probe.

This test is only available at CHOP’s Main Campus.

Contact us

To learn more or request an appointment, call 215-590-3326.


Reviewed by:
Petar Mamula, MD
Date: May 2014

  • Print
  • Share

Contact Us