Pharyngeal pH Assessment
If you have symptoms of heartburn or throat clearing, cough, and voice change, your physician may want to determine the amount of acid (the pH) that is getting into the back of your throat or your pharynx. This test is called ambulatory monitoring because you go home and go about your usual daily routine while you’re being monitored.
A small (1.5 millimeter) catheter is inserted through your nose and down the back of your throat. The tube is taped in place on your nose and has a cord that is attached to a receiver and has a portable recorder. You wear the recorder in a pouch that has a strap that goes around your waist or neck.
Unless instructed otherwise by your physician:
By Farzaneh Banki, M.D.