Blood tests can help diagnose arthritis, monitor treatments, and track disease activity.

Lupus is a complex disease which can be hard to diagnose. Symptoms of lupus can resemble other types of arthritis and rheumatic diseases.

Information about diagnostic procedures, laboratory work, and other tests your physician may order. Includes test results information to help you understand their meanings.

Screening for Alzheimer's: Blood Tests. Before a diagnosis of Alzheimer's is made a number of routine tests will be run in order to rule out conditions that can mimic Alzheimer's

Alcoholic ketoacidosis is an accumulation of ketones (a type of acid) in the blood, caused by excessive alcohol consumption.

Learn how home pregnancy tests work.

HUS is a disorder marked by , , (platelet deficiency), coagulation defects, and variable nervous system signs.

This syndrome involves brain damage (encephalopathy) and liver damage of an unknown cause. It is associated with the use of aspirin in children to treat chickenpox or influenza.