304 results found
Medical tests
… of radiation. Bitewing. These X-rays show the upper and lower back teeth in a single view. These X-rays are used to … decay between the teeth and to show how well the upper and lower teeth line up. They also show bone loss when severe … of radiation. Bitewing. These X-rays show the upper and lower back teeth in a single view. These X-rays are used to …
Medical tests
… tests are done to find certain antibodies that attack red blood cells. Antibodies are proteins made by the immune … cause antibodies to be made. Transfusion reaction Human blood is typed by certain markers (called antigens ) on the surface of red blood cells . If you get a blood transfusion, the transfused …
Medical tests
… Test Overview Partial thromboplastin time (PTT) is a blood test that measures the time it takes your blood to … closely checked. If you have a longer PTT, you may have a higher risk of bleeding. Medical Tests: … closely checked. If you have a longer PTT, you may have a higher risk of bleeding. Medical Tests: …
Medical tests
… Test Overview A d-dimer test is a blood test that measures a substance that is released when a … means that a blood clotting problem isn't likely. A higher-than-normal d-dimer level might mean that there is a blood-clotting problem. But a higher level might be caused by some other health problem or …
Medical tests
… and pulses of radio wave energy to provide pictures of blood vessels inside the body. In many cases MRA can provide … tomography (CT) scan . MRA can find problems with the blood vessels that may be causing reduced blood flow. With MRA, both the blood flow and the condition …
Medical tests
… how much human immunodeficiency virus (HIV) is in the blood. The test measures the amount of the genetic material ( RNA ) of HIV in the blood. Viral load is first measured when you are diagnosed … undetectable. This means there is very little virus in your blood. Why It Is Done A viral load test is done to watch for …
Medical tests
… Are unexpected. This may include the sudden death of a healthy child or adult. Or it may be the death of a person … Are unexpected. This may include the sudden death of a healthy child or adult. Or it may be the death of a person …
Medical tests
… , or the genetic material ( DNA or RNA ) of HIV in the blood or another type of sample. This can show if an HIV infection is present (HIV-positive). HIV infects white blood cells called CD4+ cells. They are part of the body's … to 12 weeks for HIV antibodies or antigens to appear in the blood. The period between becoming infected with HIV and the …
Medical tests
… antigen test also may be used to screen people who are at high risk for having giardiasis. Results A test that detects … antigen test also may be used to screen people who are at high risk for having giardiasis. Results A test that detects …
Medical tests
… Information Test Overview The hepatitis A virus test is a blood test that shows if you have a hepatitis A infection … made by the body to fight the virus. They will be in your blood if you have a hepatitis A infection now or have had … to 12 weeks after you are first infected. They stay in your blood and protect you from hepatitis A permanently. Why It …
