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What is the difference between gastric function testing and gastroscopy?

Nov 09, 2023 Source: Cainiu Health
Dr. Shen Yonghua
Introduction
In general, the differences between gastric function testing and gastroscopy lie in the examination methods, scope, purposes, applicable populations, and timing. Gastric function testing is usually performed through blood tests, whereas gastroscopy involves using an endoscope to directly observe the condition of the gastric mucosa.

Generally speaking, the differences between gastric function tests and gastroscopy lie in the examination methods, scope, purposes, applicable populations, and required time. Specific analysis is as follows:

1. Different examination methods

Gastric function testing is usually performed through blood tests; gastroscopy, on the other hand, involves inserting a gastroscope to directly observe the condition of the gastric mucosa.

2. Different examination scopes

Gastric function tests assess overall gastric function, such as gastric acid secretion and levels of pepsinogen, but cannot detect specific internal lesions in the stomach. Gastroscopy, however, allows direct visualization of various internal gastric abnormalities, including gastritis, ulcers, and tumors.

3. Different examination purposes

The primary purpose of gastric function testing is to evaluate whether the patient's stomach function is normal. In contrast, gastroscopy aims to determine the specific condition of the stomach to diagnose potential gastric diseases.

4. Different applicable populations

Gastric function tests are suitable for individuals needing evaluation of gastric function, such as patients preparing for surgery or treatment. Gastroscopy is recommended for those requiring detailed stomach examinations, such as patients experiencing symptoms like upper abdominal discomfort or difficulty swallowing.

5. Different examination times

Gastric function tests are generally conducted on an empty stomach and take about 30 minutes. Gastroscopy requires fasting for 6–8 hours beforehand, administration of anesthesia under medical supervision, and typically takes between 30 minutes to one hour.

If a patient experiences any discomfort, it is recommended to seek timely medical attention at a hospital to avoid delays in diagnosis and treatment.

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