Typically, a diagnosis is made based on the patients description of his or her symptoms. If a diagnosis is not possible based on these symptoms, however, other methods are used.
Tests for blood cell count, ''H. pylori'', and pregnancy; and liver, kidney, gallbladder, and pancreas functions, may be ordered.
Urinalysis may be used, or a stool sample taken, to look for blood in the stool. X-rays may be ordered, as well as ECGs.
If none of these tests are able to be used for diagnosis, the patient may be recommended to a gastroenterologist.
An endoscopy may be performed, where a flexible probe with a camera on the end is sent into the stomach to check for stomach lining inflammation and mucous erosion.
At the same time, a stomach biopsy may be taken to test for gastritis and a variety of other conditions.
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