329 results found
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 … antibody (IFA). This test detects HIV antibodies using a special fluorescent dye and a microscope. This test …
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 …
Medical tests
… load test measures how much hepatitis C virus is in the blood. Viral load may be measured before, during, and after … test is done to see if there is any active virus in the blood. It's sometimes used to see how well treatment for … It Is Done A health professional uses a needle to take a blood sample, usually from the arm. How It Feels You may …
Medical tests
… Test Overview A breath alcohol test is an estimate of your blood alcohol concentration (BAC). The test measures the … quickly. The amount of alcohol in your blood reaches its highest level about 60 minutes after you drink. But food in … mouth from a recent drink can give false results. So can using mouthwash or mouth spray, such as mouth sprays to …
Medical tests
… You get an injection of a radioactive tracer into your blood. Then your doctor uses a special camera to see how well your heart is pumping blood. Invasive procedure. This test is done as part of a … of your heart muscle as your ventricles fill and pump blood. The size of your ventricles. How efficiently your …
Medical tests
… Results Test Overview A CD4+ count is a blood test to see how well the immune system is working in … low CD4+ count usually means a weakened immune system and a higher chance of getting opportunistic infections. Why It Is … low CD4+ count usually means a weakened immune system and a higher chance of getting opportunistic infections. Why It Is …
Medical tests
… Information Test Overview Hepatitis C virus (HCV) test is a blood test that looks for the genetic material ( RNA ) of … makes against HCV. These proteins will be present in your blood if you have a hepatitis C infection now or have had … It's important to identify the type of hepatitis virus causing the infection, to prevent its spread and choose the …
Medical tests
… . A test for DHEA-S checks the level of this hormone in the blood. Testosterone affects sexual features and development. … because that is when the amount of DHEA-S is at its highest. Women may be asked to take the test at a certain … because that is when the amount of DHEA-S is at its highest. Women may be asked to take the test at a certain …
Medical tests
… pictures of structures more clearly. The dye may help show blood flow, look for some types of tumours, and show areas … Look for the cause of headaches. Help diagnose a stroke or blood vessel problems in the head. Problems with blood … the test. But most reactions are mild and can be treated using medicine. If you breastfeed and are concerned about …
