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Thyroid-Stimulating Hormone
This test measures your level of TSH, a hormone made by your pituitary gland. You may need this test if you have symptoms of thyroid problems.
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Tricyclic Antidepressant Screen
This test is used to check a sample of blood or urine for tricyclic antidepressants. Although these medicines can be helpful in normal doses, taking too much can be fatal.
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Triglycerides
This test measures the amount of triglycerides in your blood. This test is part of a group of cholesterol and blood fat tests called a fasting lipoprotein panel, or lipid panel.
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Trypsin/Chymotrypsin (Stool)
This test looks for two enzymes from the pancreas, to find out how well the pancreas is working. This test is used for people with cystic fibrosis.
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Uniparental Disomy
This test is used to see if a child has certain chromosome changes.
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Blood Urea Nitrogen
This test measures the amount of urea nitrogen in your blood. It can help your doctor find out if you have kidney disease or another kidney disorder.
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Urea Nitrogen Clearance (Urine)
This test measures the amount of urea nitrogen in your urine. The test can help diagnose kidney problems.
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Uric Acid (Blood)
This test measures the amount of uric acid in your blood. Too much uric acid can cause gout or kidney stones.
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Uric Acid (Urine)
This test is used to find out whether you have gout. It can also be used to keep track of you during cancer treatment and to check your urine after you've had a kidney stone.
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