329 results found
Medical tests
… test also looks at other cells in the retina. It may be used to check for problems such as: Retina damage from drugs … vascular diseases. A full-field ERG may help find the cause of certain retina problems, such as vitamin A deficiency … response in the central part of the retina. It may be used to help check for: Diseases of the macula that aren't …
Medical tests
… doctor can also see other structures in the eye. The doctor uses a magnifying tool called an ophthalmoscope and a light … types of ophthalmoscopy. Direct ophthalmoscopy. Your doctor uses a tool that is about the size of a small flashlight. It … up to about 15 times. Indirect ophthalmoscopy. Your doctor uses a small hand-held lens and either a slit lamp …
Medical tests
… doctor to see all the structures inside the nose and the sinuses. Before inserting the endoscope , the passages inside … Why It Is Done An endoscopic sinus examination may be used if: The diagnosis of sinusitis is still in doubt after … is being considered. An endoscopic sinus examination may be used to evaluate the structures inside the nose where the …
Medical tests
… of a radioactive tracer into your blood. Then your doctor uses a special camera to see how well your heart is pumping … a thin, flexible catheter into your heart. Your doctor uses the catheter to inject dye into your heart. This dye … Incorporated disclaims any warranty or liability for your use of this information. Your use of this information means …
Medical tests
… can include infection (such as from parasites , viruses , or bacteria ), poor nutrient absorption, or cancer. … help see how well the pancreas is working. Help find the cause of symptoms affecting the digestive tract, such as … diarrhea, bloody diarrhea, an increased amount of gas, nausea, vomiting, loss of appetite, bloating, belly pain and …
Medical tests
… from the uterus, such as fibroids or polyps. It may also be used to diagnose and treat abnormal bleeding or fertility … Why It Is Done A hysteroscopy may be done to: Find the cause of severe cramping or abnormal bleeding. Your doctor can … size of the uterus or if scar tissue in the uterus is the cause of infertility. Look at the uterine openings to the …
Medical tests
… Test Overview A breast ultrasound uses sound waves to make a picture of the tissues inside the … hard to study with a mammogram . Breast ultrasound does not use X-rays or other potentially harmful types of radiation. A breast ultrasound is used to see whether a breast lump is filled with fluid (a …
Medical tests
… Results Test Overview A testicular scan uses a special camera to take pictures of the testicles … ). A scan may be done in an emergency to find out the cause of sudden, painful swelling of a testicle. That problem can be caused by a twisted cord in the testicle. This condition is …
Medical tests
… Overview A viral test is done to find infection-causing viruses. Viruses grow only in living cells. Viruses cause disease by destroying or damaging the cells they …
Medical tests
… Overview Overview A complement test uses a blood sample to detect a group of proteins that help … of foreign substances in the body, such as bacteria or viruses, a low level of complement means the body is trying to … Incorporated disclaims any warranty or liability for your use of this information. Your use of this information means …
