What Can Cause Bloody Stool and Vomiting?

When upper gastrointestinal bleeding is suspected, clinical tests are often performed on the stool and occult blood to determine if there is bleeding. If the patient has vomit, you can do a occult blood test in time. The occult blood test has been chemically used in the past. It is gradually replaced by the colloidal gold monoclonal antibody method (referred to as colloidal gold method). False negative.