The esophagus is a tube that transfers the food that we eat to the stomach. An esophagus test is used to measure the muscle pressure, movement, coordination, and strength of the esophagus.
Esophagus tests are conducted in order to
The two most well-known esophagus tests are the esophageal manometry test and esophageal pH monitoring. Both of these tests involve the insertion of a tube through the nose or mouth till it reaches the lower esophagus.
There is some amount of preparation before either of these tests is performed.
Also called the esophageal acidity test, it is used to measure the amount of acid contained in the esophagus. A small tube that contains an acid pH-monitoring device is inserted into the esophagus through the nose or the mouth. The values of the acid pH is then monitored and recorded. Sometimes a long duration of pH monitoring is recommended. A wired or wireless device may be attached to the patient's body for these kinds of procedures. A pH value between 4 and 6 is considered to be normal. Any value that is consistently lesser than 4 indicates an abnormal condition, and may be attributed to GERD.
This procedure involves swallowing a small tube that contains sensors to measure the pressure in the various parts of the esophagus. The readings of the sensor are displayed in a graphical format for analysis. A normal esophageal manometry reading indicates that the pressure of the esophagus to move the food down is normal. An abnormal reading could mean that there are muscle spasms in the esophagus or that the contractions of the esophagus are weak. There are very few risks associated with esophagus tests.