Rapid urease test (done on biopsy specimens after upper endoscopy)

Helicobacter pylori colonisation was determined by a CLO test (a gel based rapid urease test) and histological assessment.

However, the most reliable method for detecting H. pylori infection is a biopsy check during endoscopy with a rapid urease test, histological examination, and microbial culture.

Antral, corpus, and fundal biopsy specimens were taken for histology and H pylori status (histology, culture, and rapid urease test).

Rapid urease test, also known as the CLO test (Campylobacter-like organism test), is a rapid test for diagnosis of Helicobacter pylori.

One sample was placed in a CLO test (a gel based rapid urease test) for assessment of Helicobacter pylori state (a positive result denoted by a colour change at four hours).

H pylori infection was confirmed in the duodenal ulcer patients by microscopic examination of antral biopsy rapid urease test (CLO test) on antral biopsy, and by C urea breath test.