Which of the following are diagnostic tests for Helicobacter pylori infection
Which of the following are diagnostic tests for Helicobacter pylori infection? (Select all that apply)
A. Urea breath test
B. Stool antigen test
C. Endoscopic biopsy
D. Blood pressure measurement
Answer: A, B, C
Explanation: Urea breath, stool antigen, and endoscopic biopsy tests diagnose H. pylori; BP measurement is unrelated.
