What is a pH impedance probe?
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An impedance/pH probe measures acid and non-acid reflux in your child’s 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.
What does a pH impedance test show?
Twenty-four-hour pH impedance testing is a procedure that assesses acid reflux in the esophagus over a 24-hour period.

How does pH impedance work?
During pH impedance: Your doctor places a thin, flexible catheter with an acid-sensitive tip through your nose into your esophagus. The catheter is placed in separate recording spots to evaluate the flow of liquid from your stomach into your esophagus. The catheter stays in your nose for a period of 24 hours.
What is impedance in Esophageal manometry?
Esophageal pH Impedance is a test used to measure the amount of acid refluxing from your stomach into the esophagus (the ‘food pipe’). For this procedure, a thin catheter is passed into one nostril, down the back of the throat, and into the esophagus as you swallow.

What is an impedance manometry study?
pH/Impedance with manometry testing is an outpatient test that your doctor orders to evaluate various gastrointestinal disorders like acid reflux, difficulty swallowing (dysphagia), regurgitation, and non-cardiac chest pain. The test is also used prior to surgical repair of a hiatal hernia.
How do you place an impedance probe?
The PH Impedance catheter will be inserted through your nostril into your esophagus, secured in place with tape and connected to a recording device. The test lasts for 24 hours. If you experience any difficulties during the test, please contact the Digestive and Liver Disease clinic at 214-645-0595.
What is non-acidic reflux?
Non-acidic reflux is a phenomenon whereby stomach contents that does NOT contain any acidity refluxes up from the stomach and up into the throat area. Such non-acid or mucus reflux can cause symptoms of: Chronic cough. Phlegmy throat.
What is pH probe placement?
The pH probe is a thin tube about the size of a cooked spaghetti noodle that is soft and bends easily. The end of the probe is placed through the nose and into in the esophagus. The probe will be taped to your child’s cheek to prevent it from moving and making your child uncomfortable during the test.
What are the four types of acid reflux?
The four types of acid reflux are mild, moderate, severe and the type that can lead to esophageal cancer. Acid reflux, also known as gastroesophageal reflux disease (GERD), is a common stomach issue.