A blood test is a medical procedure where a sample of a person's blood is taken (called a blood draw) and sent to a lab for analysis. Knowing the results of blood tests helps a physician better ...

A walking test can help your doctor determine whether symptoms are improving or getting worse. There are different types of walking tests to assess for various symptoms. Multiple sclerosis (MS) is a ...

New research highlights the potential importance of ordering more than one type of antinuclear antibody (ANA) test when clinicians are screening for lupus. ANAs are a type of antibody that are found ...