This procedure is also known as esophageal manometry. A specially trained RN inserts a small catheter, the approximate size of a small pencil eraser, into the nare of the nose. The catheter has several transducers which measure pressures in the esophagus at different levels. The nurse performing this procedure then provides the physician with the results for interpretation.The patient is not sedated for this procedure which can take 15 - 25 minutes to perform. The physician will often request the patient refrain from taking calcium channel blockers such as cardizem, procardia, drugs such as propulsid, reglan, erythromycin, nitroglycerine (Isordil), prilosec, pepcid, zantac, prevacid, tagamet, levsin, librax, donnatol, and others for 48 hours prior to the study. The patient should let their physician know if they are taking medications routinely to determine if discounting for this 48 hours.
The patient is usually asked not to eat or drink anything at least 6 hours prior to the procedure. Also, certain medications may be stopped 48 hours prior to the procedure.