Pediatric pH Probe Study

What is Pediatric pH Probe Study?

A pH probe study measures the pH (amount of acidity) in the esophagus (food tube). The study helps determine whether or not acid is coming up from the stomach. 

Pediatric pH Probe Study Doctors and Providers

Frequently Asked Questions

  • How is Pediatric pH Probe Study performed?

    A thin plastic tube with a sensor at the tip is placed into one nostril. It is moved into the esophagus. Inserting the a tube may cause your child to:

    • gag
    • sneeze
    • make their eyes tear

    A chest x ray is taken to confirm the position of the tip of the probe. A wire is connected to a portable recorder. The recorder collects information from the probe. Your child can carry the recorder around for the rest of the study. The study lasts 18-24 hours.

  • What is allowed during Pediatric pH Probe Study?

    Your child should continue with usual activities. A diary of symptoms such as

    • crying
    • coughing
    • chest pain
    • refusing to eat

    This will help determine whether acidity in the esophagus is responsible for your child’s complaints. Carbonated drinks, such as soda, should be avoided.