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Medical tests
… assay (ELISA). This test is usually the first one used to detect infection with HIV. If antibodies to HIV are … PCR testing isn't done as often as antibody testing, because it requires technical skill and expensive equipment. … tests are negative for the virus. The PCR test is very useful to find a very recent infection, find out if an HIV …
Medical tests
… electrodes taped to the head. The VER is the most commonly used evoked potential test in the diagnosis of multiple … 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
… How It Is Done Results Test Overview Some blood tests are used to determine whether your liver is damaged or inflamed. … doctor tells you to. How It Is Done A health professional uses a needle to take a blood sample, usually from the arm. … Incorporated disclaims any warranty or liability for your use of this information. Your use of this information means …
Medical tests
… Thick and Thin Blood Smears for Malaria—Overview Doctors use thick and thin blood smears to determine whether you … drop of blood on a glass slide. Thick blood smears are most useful for detecting the presence of parasites, because they examine a larger sample of blood. (Often there are …
Medical tests
… Why It Is Done Seizure medicines are usually monitored because: At a low blood level, they don't control seizures as well as they should. At a high blood level, they may cause problems. Your doctor may use your test results to adjust your dose. How To Prepare …
Medical tests
… Overview An angiogram of the lung is an X-ray test that uses a special dye and camera ( fluoroscopy ) to take … pictures in a computer. A lung (pulmonary) angiogram is used to check the arteries that lead to the lungs (pulmonary … to the lungs, to look for lung problems, or to find other causes of blockage or narrowing of the vessels. How To Prepare …
Medical tests
… very quickly. The number of white blood cells is sometimes used to find an infection or to see how the body is dealing … measures the average amount (volume) of platelets. MPV is used along with platelet count to diagnose some diseases. If … a doctor may want this blood test, including to: Find the cause of symptoms such as fatigue, weakness, fever, bruising, …
Medical tests
… has been cured after treatment. An antigen test also may be used to screen people who are at high risk for having … and do not test for other intestinal infections that cause similar symptoms. People may get infected with other organisms that cause the same symptoms if they travel to countries where …
Medical tests
… (also called an echo) is a type of ultrasound test that uses high-pitched sound waves that are sent through a device … wall. TEE shows clearer pictures of your heart. That's because the probe is closer to the heart and because the lungs and bones of the chest wall don't block the …
Medical tests
… scan is a type of nuclear scanning test. It is most often used to find a pulmonary embolism . This is a blood clot … get through 1 to 2 days of feeding. The radioactive tracer used in this test can get into your breast milk and is not … examined. You will be given a cloth or paper covering to use during the test. During the scan, you might lie on your …