Will I need to do anything to prepare for testing?You don't need any special preparation for an H. pylori blood test.For breath, stool, and endoscopy tests, you may need to stop taking certain medicines for as long as two weeks to a month before testing. Be sure to talk with your health care provider about all medicines you are currently taking.For an endoscopy, you may need to fast (not eat or drink) for about 12 hours before the procedure.
