329 results found
Medical tests
… is the removal of fluid from behind the eardrum. The doctor uses a special needle with a tube attached to collect the … Incorporated disclaims any warranty or liability for your use of this information. Your use of this information means that you agree to the Terms of …
Medical tests
… found commonly in Sjögren's syndrome . But these tests are useful in helping women with lupus who are considering … Incorporated disclaims any warranty or liability for your use of this information. Your use of this information means that you agree to the Terms of …
Medical tests
… against sperm in blood, vaginal fluids, or semen. The test uses a sample of sperm and adds a substance that binds only to affected sperm. Semen can cause an immune system response. The antibodies can damage or … fully understood but may affect fertility. This is a rare cause of infertility . Results The higher the level of …
Medical tests
… a lower gastrointestinal (GI) examination. The test is used to help find diseases and other problems that affect … inserted into the anus. The barium blocks X-rays. This causes the barium-filled colon to show up clearly on the X-ray … colitis and Crohn's disease . A barium enema also may be used to keep track of the progress of these diseases. Find …
Medical tests
… at the same time. A procedure called catheter ablation uses the catheters to destroy (ablate) small areas of your … the problem. Why It Is Done An electrophysiology study is used to check your heart's electrical system. For example, … vessel toward your heart. Usually several catheters are used. The doctor moves the catheters into various places in …
Medical tests
… you wear them). Several types of visual acuity tests may be used. Refraction test. This test shows your level of … the nerve layer ( retina ) at the back of the eye. This causes blurred vision. Refraction is done as a routine part of … corrected by glasses. Visual field tests. These tests are used to check for gaps in your side (peripheral) vision. …
Medical tests
… Test Overview An echocardiogram (also called an echo) uses sound waves to make an image of your heart. A device … Is Done This test is done to check your heart health. It's used for many reasons. For example, it may be done to: Check a heart murmur. Look for the cause of shortness of breath or unexplained chest pains. Check …
Medical tests
… bone has been fractured or a joint dislocated . It is also used to check for an injury or damage from conditions such … . Why It Is Done Extremity X-rays are done to: Find the cause of pain in an extremity. See if your bone is fractured … an artificial joint in a bone. Find changes in your bones caused by conditions such as an infection, arthritis, bone …
Medical tests
… Some diseases, such as severe forms of thalassemia , may cause hemoglobin A levels to be low and hemoglobin F levels to … F (fetal hemoglobin). This type is normally found in fetuses and newborn babies. Hemoglobin F is replaced by … may be found by an electrophoresis test. Electrophoresis uses an electrical current to separate normal and abnormal …
Medical tests
… test that may be done at 15 to 22 weeks of pregnancy. It's used to look for possible problems with your baby. The quad … for Birth Defects? How It Is Done A health professional uses a needle to take a blood sample, usually from the arm. … defects, such as spina bifida, in up to 80 out of 100 fetuses who have it. It finds anencephaly in about 95 out of …
