24-hour pH | 合法醫療器材資訊網

Thetestisonewayyourdoctorcanseeifyouhaveaconditioncalledgastroesophagealrefluxdisease,orGERD.·Thetestinvolvesanarrow,flexibletubecalleda ...

Twenty-four-hour pH impedance testing is a procedure that assesses acid reflux in the esophagus over a 24-hour period. 

24-hour pH impedance testing is one method your doctor can use to evaluate acid and nonacid reflux from your stomach into your esophagus (the passageway between your mouth and stomach) over the course of a day.

A thin, noodle-like, flexible catheter (tube) inserted into your nose, and guided into the opening of your stomach. The catheter can pick up changes in acidity along its entire length. The catheter conveys information about your acid reflux activity to a computer about the size of a smartphone that you wear on a belt.

The tube stays in place for 24 hours while you eat, drink, sleep and go about your normal activities. The doctor can capture information about acid levels and other activities of...