For years, it has been one of the most tantalizing ideas in medicine: One day, a simple blood test will detect nascent cancers - allowing doctors to intervene when tumors may be easier to treat. A ...

Blood tests can help diagnose and monitor systemic lupus erythematosus (SLE). These include tests for antinuclear antibodies (ANAs), anti-double-stranded DNA (anti-dsDNA) antibodies, and more. While ...

Blood draws for several kinds of diagnostic tests require you to fast for several hours. Eating or drinking anything besides water can skew the results, leading to you needing to be retested. You may ...

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 ...

In today’s Health Alert, promising new blood tests could change how we screen for cancer, but questions remain. Are these ...

Mayo Clinic researchers have developed a blood-based method that may help detect germ cell tumors, the most common type of ...

A person should only fast before a blood test if their doctor or healthcare professional specifically instructs them to do so. Not all blood tests require fasting. If a doctor or healthcare ...