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Gastrointestinal function tests: gastric pH measurement: 24-hour oesophageal pH test

The pH value in your stomach was measured.

The stomach acid is produced in the stomach. The stomach acid is involved in digesting food. The stomach is located in the upper abdomen. The stomach has a curved shape, and is connected to the gullet (oesophagus) at its upper end and with the first part of the small intestine at its lower end. Between the stomach and the small intestine is a ring-shaped valve, the pylorus. The inside of the stomach is lined with mucous membrane.

To measure the pH value, a thin tube is pushed through the nose and throat into the stomach. The tube is used to measure the pH value over a certain period of time, and this is recorded by a small device. The pH value indicates how acid or alkaline a fluid is. The measurements in your stomach were taken over a long period of time. This may involve one or more days, for example. When measurements are taken over a long period of time, a small capsule can also be used, instead of a tube. This capsule is swallowed. The capsule then measures the pH value in the stomach.

Additional indicator

If necessary, additional letters are appended to OPS codes to indicate which side of the body is affected.

  • L: Left
  • R: Right
  • B: Both sides

Further information

Note

Your doctor will assist you with any health-related questions and explain the OPS code to you in a direct consultation if necessary.

Source

Provided by the non-profit organization “Was hab’ ich?” gemeinnützige GmbH on behalf of the Federal Ministry of Health (BMG).