226 results found
Medical tests
… cyst . Guide the placement of a needle or other tool during a biopsy . Look for fluid buildup in the belly … . An ultrasound also may be done to guide the needle during a paracentesis . This is a procedure to remove fluid … You will be given a cloth or paper to cover yourself during the test. You will lie on your back (or on your side) …
Medical tests
… In some cases, a dye ( contrast material ) may be used during the MRI to show pictures of structures more clearly. … to reduce the noise. You will be asked to hold still during the scan. You may be asked to hold your breath for … technologist will watch through a window and talk with you during the test. How long the test takes The test usually …
Medical tests
… builds up in testicular tissues (nuclear medicine test). During a testicular scan, the tracer is injected into a vein … clothes. You will be given a cloth or paper covering to use during the test. The technologist cleans the site on your … are done about 15 minutes apart. You need to lie very still during each scan to avoid blurring the pictures. The camera …
Medical tests
… much heart muscle has been damaged from the heart attack. During the scan, a camera takes pictures of the heart after … products you take. Some may increase the risk of problems during your test. Your doctor will tell you if you should … your heart muscle. You will be asked to remain very still during each scan. The camera will move to take more pictures …
Medical tests
… fluid, or CSF ) that surrounds the brain and spinal cord. During a spinal tap, a needle is carefully inserted into the … may be present. The pressure of the CSF also is measured during the procedure. Why It Is Done A spinal tap is done … products you take. Some may increase the risk of problems during your test. Your doctor will tell you if you should …
Medical tests
… ( metabolism ). The amount of GH in the blood changes during the day and is affected by exercise, sleep, emotional stress, and diet. Too much GH during childhood can cause a child to grow taller than normal ( gigantism ). Too little GH during childhood can cause a child to grow less than normal …
Medical tests
… If a large amount of fluid is going to be taken out during the procedure, you may lie on your back with your … in your arm. It is important that you lie completely still during the procedure, unless you are asked to change … is taken out. Tell your doctor if you do not feel well during the test. Risks There is a very small chance that the …
Medical tests
… how brain waves respond to certain things you look at during the test. Why It Is Done The different … done varies. Electroretinography (ERG) You sit or lie down during the test. Eye drops are used to numb the eye. A tiny … dark adaptation. Different wavelengths of light are used during the test to check for problems with the eye's rod and …
Medical tests
… You will be given a cloth or paper to cover yourself during the test. You will lie on your back on a table. A … can be viewed from other angles. You need to lie very still during each scan to avoid blurring the pictures. You may be asked to hold your breath briefly during some of the scans. Each scan may take about 60 to 90 …
Medical tests
… or fluids with vanilla. Licorice. Do not use tobacco at all during the 24-hour urine collection. Be sure to keep warm during the 24 hours. Being cold can raise your catecholamine levels. Drink plenty of fluids during the 24 hours to avoid dehydration . Your doctor may …
