![]() At this point, you need to refrain from swallowing to ensure the calibration is correctly set. The healthcare provider then starts to calibrate the catheter sensors.The catheter is then taped in place and you are asked to lie on your side. Once the catheter is past the UES, it is quickly fed into the esophagus and stomach.Doing so opens the sphincter, allowing the catheter to enter with minimal resistance. To move the catheter past your UES, you will be asked to sip water through a straw. ![]() You may be asked to tilt your head down to help ease the catheter in. ![]() As the catheter is inserted, it will reach a point of resistance as it makes an acute angle into the throat.Before inserting the catheter, the tip is lubricated with the topical anesthetic.
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