What is the primary use of a gastroscope?

The primary use of a gastroscope is to perform an upper endoscopy, which enables visualization of the esophagus and stomach. This procedure allows healthcare professionals to identify abnormalities such as inflammation, ulcers, or tumors in these areas. The gastroscope is designed specifically for accessing the upper gastrointestinal tract and provides valuable insights into the health of the esophagus and stomach lining.

In contrast to the gastroscope, a colonoscopy is specifically intended for examining the colon, which is why that option does not apply here. The small intestine is typically examined using a different type of endoscope, known as an enteroscope, rather than a gastroscope. Lastly, a gastroscope is not utilized for treating respiratory diseases; its design and function are specifically tailored for gastrointestinal examination and treatment.