329 results found
Medical tests
… urine. A high level of phosphate in the blood is usually caused by a kidney problem. The amount of phosphate in the … glands, such as the parathyroid glands. The test is also used to find a cause for abnormal vitamin D levels. How To Prepare Tell your …
Medical tests
… Test Overview A salivary gland scan uses a special camera and a tracer (radioactive chemical) to … the salivary glands . This can help your doctor find the cause of dry mouth ( xerostomia ) or swelling in the salivary … Why It Is Done A salivary gland scan is done to: Find the cause of swelling in the major salivary glands. Swelling may …
Medical tests
… liver and spleen. In the bone marrow, iron is stored and used as needed to make new red blood cells. The source of … thing in the morning. How It Is Done A health professional uses a needle to take a blood sample, usually from the arm. … normal. Your lab report should show the range that your lab uses for each test. The normal range is just a guide. Your …
Medical tests
… tolerance test (OGTT) measures the body's ability to use a type of sugar, called glucose, that is the body's main source of energy. An OGTT can be used to diagnose prediabetes and diabetes . An OGTT is most … taken in one day. But the amount of blood taken will not cause significant blood loss or anemia. Risks There is very …
Medical tests
… checked for glaucoma. Glaucoma is an eye disease that can cause blindness by damaging the optic nerve . If you have … help control glaucoma. Check for birth defects that may cause glaucoma. How To Prepare If you wear contact lenses, … back in for 1 hour after the test or until the medicine used to numb your eye wears off. If your eyes might be …
Medical tests
… challenge and inhalation challenge tests are sometimes used to diagnose asthma and workplace asthma (occupational … test is rarely needed to diagnose asthma. But it may be used to: See whether the tubes that carry air to the lungs … Incorporated disclaims any warranty or liability for your use of this information. Your use of this information means …
Medical tests
… from a vein. Why It Is Done LDH levels help find the cause of lung disease, lymphoma, anemia, and liver disease. … doctor tells you to. How It Is done A health professional uses a needle to take a blood sample, usually from the arm. … normal. Your lab report should show the range that your lab uses for each test. The normal range is just a guide. Your …
Medical tests
… urine from the bladder to outside the body. The doctor uses a thin, lighted tool called a cystoscope. With this … with liquid. This helps the doctor see better. It may cause you to feel pressure in your bladder area for a short … visit. Why It Is Done Cystoscopy may be done to: Find the cause of many urinary system problems. Examples include blood …
Medical tests
… It Is Done A cardiac perfusion scan is done to: Find the cause of unexplained chest pain or pressure. Find the cause of chest pain or pressure brought on by exercise. Check for the location and amount of damage caused by a heart attack. Identify coronary artery disease …
Medical tests
… middle sections of the gastrointestinal tract . The test uses barium contrast material , fluoroscopy , and X-ray . … instead of an upper GI series in certain cases. Endoscopy uses a thin, flexible tube (endoscope) to look at the lining … Why It Is Done An upper GI series is done to: Find the cause of gastrointestinal symptoms, such as trouble …
