This test looks for the bacteria that cause strep throat. Strep throat causes a severe sore throat and makes it painful to swallow.

This test is used to diagnose liver damage.

An arterial blood gas analysis measures the balance of oxygen and carbon dioxide in your blood to see how well your lungs are working.

This test measures how long it takes your blood to form a clot. You may need this test if your doctor believes that you have a problem with one or more clotting factors.

This test measures the amount of a certain type of cholesterol in your blood. It helps your health care provider determine your risk for cardiovascular disease, a disease affecting your heart and blood vessels.

This test measures the amount of a protein in your blood related to LDL and HDL cholesterol. It can help predict your risk for heart disease.

This test screens for celiac disease and also helps your doctor monitor your condition if you have this disease.

The antithrombin activity and antigen tests are used to help find out what may be causing abnormal blood clots in your body.

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

This blood test is done to help your doctor diagnose a type of illness called an autoimmune disease.