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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.

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.

Wounds need oxygen to heal correctly, and exposing a wound to 100% oxygen can, in many cases, speed the healing process.

Right heart catheterization allows a surgeon to use a small, thin hollow tube called a catheter to examine your heart.

In a right-heart catheterization with heart tissue biopsy, tissue samples are taken directly from your heart muscle. Read on to learn details about this procedure.