329 results found
Medical tests
… During an ear examination, a tool called an otoscope is used to look at the outer ear canal and eardrum. An otoscope … process to screen newborns for hearing loss. To find the cause of symptoms such as earache, a feeling of pressure or … or the workplace. For an ear examination, the doctor uses a special tool called an otoscope to look into the ear …
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
… 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
… to find germs (such as bacteria or a fungus ) that can cause an infection. A sample of sputum is added to a substance … no germs grow, the culture is negative. If germs that can cause infection grow, the culture is positive. The type of … See if treatment is working. How To Prepare Do not use mouthwash before you collect your sputum sample. Some …
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
… 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 …
Medical tests
… Test Overview A home lung function test uses a peak flow meter or a home spirometer to monitor and … the peak flow meter. Ask your doctor to show you how to use this device before you use it at home. If you have questions about how to use a …
Medical tests
… tests may be done after thyroid hormone tests to find the cause of high or low levels of thyroid hormones. High levels … of the condition. Anti-thyroglobulin antibody: This also is used to look for Hashimoto's thyroiditis and to see if mild hypothyroidism might get worse. It also can be used to see if a thyroglobulin test done during treatment …
