The anion gap blood test measures the acid-base and electrolyte balance in the blood. Results can show whether there is an imbalance in a person’s pH levels, which may be making the blood too acidic ...

Doctors can test for gallbladder issues using a combination of physical exams, blood tests, and imaging studies. Several issues can affect the gallbladder, including gallstones, inflammation, or ...

The small intestinal bacterial overgrowth (SIBO) breath test is a noninvasive test that measures the amount of gases produced by bacteria in the small intestine. Small intestinal bacterial overgrowth ...

Mononucleosis tests can detect antibodies directed to viruses that cause mononucleosis. Usually, a doctor recommends these tests when someone has symptoms of the disease. People often refer to ...

Forbes contributors publish independent expert analyses and insights. Mark C. Perna is a generational expert who covers education & careers. Every year, teachers and students across America brace for ...