Esophagus Tests - Results

 

About this test

Esophagus tests measure muscle pressure and movement, coordination, and strength of the tube that connects the throat to the stomach (esophagus). They test how well the ring of muscles (sphincters) at the top and bottom of the esophagus work. Esophagus tests also measure the movement and volume of gas, liquid, and solid through the esophagus and its pH (acid or nonacid). Results are usually available within a few days.

pH monitoring
Normal:
  • The pH of the esophagus is not acidic.
  • If acid is placed in the stomach, the pH of the esophagus does not go down.
Abnormal:
  • The pH of the lower esophagus is frequently acidic.
  • If acid is placed in the stomach, the pH of the lower esophagus goes down.

 

Esophageal manometry
Normal:
  • The pressure of the muscle contractions that move food down the esophagus is normal.
  • The muscle contractions follow a normal pattern down the esophagus.
  • The pressure at the lower esophageal sphincter (LES) is normal.
Abnormal:
  • Muscle spasms are present in the esophagus.
  • Contractions along the esophagus are weak or uncoordinated.
  • The LES pressure is low.
  • The LES pressure is high and fails to relax after swallowing.

 

Many conditions can change the results of esophagus tests. Your doctor will discuss any significant abnormal results with you in relation to your symptoms and past health.

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