329 results found
Medical tests
… Electrophysiology Tests for the Eyes On this page: Test Overview Why It Is Done How To Prepare How It Is Done How It … 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 …
Medical tests
… Ophthalmoscopy On this page: Test Overview Why It Is Done How To Prepare How It Is Done How It … 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 …
Medical tests
… Endoscopic Sinus Exam On this page: Overview Why It Is Done Results Overview An endoscopic sinus … 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 …
Medical tests
… Ventriculogram On this page: Test Overview Test Overview A ventriculogram … 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 …
Medical tests
… Testicular Scan On this page: Test Overview Why It Is Done How To Prepare How It Is Done How It … 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 …
Medical tests
… Complement Test On this page: 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 …
Medical tests
… HIDA Scan On this page: Test Overview Why It Is Done How To Prepare How It Is Done How It … pictures of the tracer as it moves along. Your doctor can use these pictures to look for leaks, blockages, or any … It Is Done The HIDA scan may be done to: Help find the cause of pain in the upper belly, especially if the pain is on …
Medical tests
… Slit Lamp Examination On this page: Test Overview Why It Is Done How To Prepare How It Is Done How It … Test Overview The slit lamp examination uses a tool that provides a magnified, three-dimensional … of different parts of the eye. Fluorescein dye may be used during a slit lamp examination. The dye makes it easier …
Medical tests
… Retrograde Pyelogram for Kidney Stones On this page: Overview Why It Is Done Results Overview The retrograde pyelogram uses a dye to find out whether a kidney stone or something … for your urinary symptoms. The IVP cannot be done because of kidney problems such as chronic kidney disease . You …
Medical tests
… Salivary Gland Scan On this page: Test Overview Why It Is Done How To Prepare How It Is Done How It … 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 …
