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Your doctor may order a 24-hour pH impedance to evaluate your reflux. This procedure monitors your pH level (level of acidity) for a prolonged period.
Our doctors may use this test to measure how often acid leads from your esophagus into your stomach, and if this acid is related to your symptoms. Your esophagus has a muscle at the entrance to the stomach in order to keep food from coming back up into the esophagus. If this valve is not working properly, you may experience heartburn, pain or coughing.
During pH impedance: