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This test looks for a certain kind of antibody in your blood. It helps your doctor diagnose blood clotting disorders and autoimmune diseases.

This test measures the amount of a substance called carnitine in your blood. Carnitine makes it possible for your body to digest fatty acids.

This test measures the levels of catecholamines in your blood. The catecholamine hormones are adrenaline (epinephrine), norepinephrine, and dopamine.

This test measures the amount of chloride in your urine. Knowing your chloride level is useful if you have a condition called metabolic alkalosis.

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.

A cocaine screen is a test done to find out whether you have used cocaine recently. The test can be done on your urine, saliva, blood, hair, or sweat.

A superior hypogastric plexus block (SHPB) is a type of injection. It's used to diagnose and treat pain in the lower part of the belly and the pelvis.

Pacemakers and implantable cardioverter defibrillators (ICDs) are heart devices. They are surgically placed in people. Pacemakers are used to treat slow heart rhythms. ICDs stop dangerous, fast heart rhythms.

Body contouring is a type of surgery that improves how you look. It's done after you lose a large amount of weight. This type of surgery gets rid of extra skin folds and other nearby tissue. This gives your body smoother contours. Read on for details about this procedure, including what to expect.