329 results found
Medical tests
… is a blood test that measures a substance that is released when a blood clot breaks up. Doctors order the d-dimer test, … is working. Why It Is Done Doctors use the d-dimer test when a person might have a dangerous blood-clotting problem. … Results Each lab has a different range for what's normal. Your lab report should show the range that your lab uses for …
Medical tests
… ( RNA ) of HIV in the blood. Viral load is first measured when you are diagnosed with HIV infection. This first … undetectable. This means there is very little virus in your blood. Why It Is Done A viral load test is done to … the amount of the virus is too low for the test to detect. When the virus is undetectable, you cannot pass HIV to other …
Medical tests
… disease . A tumour in an adrenal gland. How To Prepare If your doctor tells you to fast before your test, do not eat … The test is usually done in the morning, because that is when the amount of DHEA-S is at its highest. Women may be … to take a blood sample, usually from the arm. How It Feels When a blood sample is taken, you may feel nothing at all …
Medical tests
… alcohol test measures the amount of alcohol (ethanol) in your body. Alcohol is quickly absorbed into the blood and … breath. Alcohol has a noticeable effect on the body, even when consumed in small amounts. In large amounts, alcohol … level is done to: Check the amount of alcohol in the blood when a person is suspected of being legally drunk …
Medical tests
… has been recent. EBV antibody testing is usually done when you have symptoms of infectious mononucleosis and a … testing may also be done to check for antibodies to EBV when a person has a disease or uses medicine that causes … there's nothing you have to do before this test, unless your doctor tells you to. How It Is Done The rapid mono test …
Medical tests
… This is called sensitivity testing. Depending on what your stool is being tested for, you may only need to collect … an infection has worked as it should. How To Prepare Tell your doctor if you have recently taken antibiotics, … samples can be collected at home. Or you may need to go to your doctor's office, a medical clinic, or the hospital. If …
Medical tests
… by the adrenal glands . Aldosterone levels tell the kidneys when to hold sodium in the body instead of passing it in the … Small amounts of sodium are also lost through the skin when you sweat. Most foods have sodium naturally in them or … there's nothing you have to do before this test, unless your doctor tells you to. How It Is Done A health …
Medical tests
… Overview A medicine blood level test measures how much of your medicine is in your blood. Your doctor checks it to … your test results to adjust your dose. You may need testing when you take medicines such as: Cyclosporine and … to take a blood sample, usually from the arm. How It Feels When a blood sample is taken, you may feel nothing at all …
Medical tests
… women for gestational diabetes. How To Prepare Tell your doctor about all the prescription and non-prescription … before the test.) How It Is Done A blood sample is taken when you arrive for the test. This is your fasting blood … may prevent you from completing the test on that day. When a blood sample is taken, you may feel nothing at all …
Medical tests
… for the proteins troponin I (TnI) and troponin T (TnT). If your heart muscle is injured, such as from a heart attack , … in other body tissues, their levels in the blood may rise when those other tissues are damaged. Cardiac enzyme studies … repeated over several hours for comparison. How It Feels When a blood sample is taken, you may feel nothing at all …
