What is a urobilinogen in urine test? Urobilinogen in urine test measures the amount of urobilinogen in a urine sample. Urobilinogen is formed from the reduction of bilirubin. Bilirubin is a yellowish substance found in your liver that helps break down red blood cells. Normal urine contains some urobilinogen. If there is little or no […]
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What is a uric acid test? This test measures the amount of uric acid in your blood or urine. Uric acid is a normal waste product that’s made when the body breaks down chemicals called purines. Purines are substances found in your own cells and also in some foods. Foods with high levels of purines
What is an ultrasound? An ultrasound is an imaging test that uses sound waves to create a picture (also known as a sonogram) of organs, tissues, and other structures inside the body. Unlike x-rays, ultrasounds don’t use any radiation. An ultrasound can also show parts of the body in motion, such as a heart beating or blood
What are tumor marker tests? These tests look for tumor markers, sometimes called cancer markers, in the blood, urine, or body tissues. Tumor markers are substances made by cancer cells or by normal cells in response to cancer in the body. Some tumor markers are specific to one type of cancer. Others can be found in several
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What is a tuberculosis (TB) screening? This test checks to see if you have been infected with tuberculosis, commonly known as TB. TB is a serious bacterial infection that mainly affects the lungs. It can also affect other parts of the body, including the brain, spine, and kidneys. TB is spread from person to person through coughing or
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What is a TSH test? TSH stands for thyroid stimulating hormone. A TSH test is a blood test that measures this hormone. The thyroid is a small, butterfly-shaped gland located near your throat. Your thyroid makes hormones that regulate the way your body uses energy. It also plays an important role in regulating your weight,
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What is a troponin test? A troponin test measures the level of troponin in your blood. Troponin is a type of protein found in the muscles of your heart. Troponin isn’t normally found in the blood. When heart muscles become damaged, troponin is sent into the bloodstream. As heart damage increases, greater amounts of troponin are released
What is a triiodothyronine (T3) test? This test measures the level of triiodothyronine (T3) in your blood. T3 is one of two major hormones made by your thyroid, a small, butterfly-shaped gland located near the throat. The other hormone is called thyroxine (T4.) T3 and T4 work together to regulate how your body uses energy. These hormones
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What is a triglycerides test? A triglycerides test measures the amount of triglycerides in your blood. Triglycerides are a type of fat in your body. If you eat more calories than you need, the extra calories are changed into triglycerides. These triglycerides are stored in your fat cells for later use. When your body needs energy, triglycerides
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What is a trichomoniasis test? Trichomoniasis, often called trich, is a sexually transmitted disease (STD) caused by a parasite. A parasite is a tiny plant or animal that gets nutrients by living off another creature. Trichomoniasis parasites are spread when an infected person has sex with an uninfected person. The infection is more common in women, but men
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