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This test looks for abnormal proteins in your blood plasma. These abnormal proteins may mean you have a life-threatening disease called cryofibrinogenemia.

This test checks for antibodies that may be found in people with abnormal blood clots or autoimmune diseases.

This is a 2-part test to look for THC in your urine. THC is the active ingredient in marijuana.

This test looks for signs of chemical poisoning in your blood. You may need this test if your doctor thinks you have been overexposed to insecticides.

Graves disease is an autoimmune disease. With this disease, antibodies cause the thyroid gland to make too much thyroid hormone. This is known as hyperthyroidism. Excess thyroid hormone in the bloodstream leads to the body's metabolism being too active. It can cause problems such as weight loss, nervousness, fast heartbeat, tiredness, and other issues. It’s an ongoing (chronic) condition that needs lifelong treatment.

HIE is a type of brain damage. It’s caused by a lack of oxygen to the brain before or shortly after birth.

Langerhans cell histiocytosis is a rare disorder that causes damage to tissues all over the body. Read on to learn about causes, symptoms, diagnosis, and treatments.

Attention deficit/hyperactivity disorder (ADHD) is a common mental affecting millions of children.

Vaginal cancer starts in the cells that form the vagina or birth canal. Learn more about symptoms, diagnosis, and treatments.