284 results found
Medical tests
… Information Test Overview The hepatitis A virus test is a blood test that shows if you have a hepatitis A infection … getting the disease. How To Prepare In general, there's nothing you have to do before this test, unless your doctor … How It Feels When a blood sample is taken, you may feel nothing at all from the needle. Or you might feel a quick …
Medical tests
… Information Test Overview An alpha-fetoprotein (AFP) blood test checks the level of AFP in a pregnant woman's … for Birth Defects? How To Prepare You do not need to do anything before you have this test. If you are pregnant, you … How It Feels When a blood sample is taken, you may feel nothing at all from the needle. Or you might feel a quick …
Medical tests
… changes the levels of the hormone cortisol in the blood. This test checks for a condition in which large … How It Feels When a blood sample is taken, you may feel nothing at all from the needle. Or you might feel a quick … How It Feels When a blood sample is taken, you may feel nothing at all from the needle. Or you might feel a quick …
Medical tests
… help nerves work, make muscles squeeze together, help blood clot, and help the heart to work. Almost all of the … in the body is stored in bone. The rest is found in the blood. Normally the level of calcium in the blood is carefully controlled. When blood calcium levels get …
Medical tests
… (AST) test measures the amount of this enzyme in the blood. AST is normally found in red blood cells , liver , … can damage the liver. How To Prepare In general, there's nothing you have to do before this test, unless your doctor … How It Feels When a blood sample is taken, you may feel nothing at all from the needle. Or you might feel a quick …
Medical tests
… Information Test Overview The sedimentation rate (sed rate) blood test measures how quickly red blood cells … treatment is working. How To Prepare In general, there's nothing you have to do before this test, unless your doctor … How It Feels When a blood sample is taken, you may feel nothing at all from the needle. Or you might feel a quick …
Medical tests
… load test measures how much hepatitis C virus is in the blood. Viral load may be measured before, during, and after … was effective. How to Prepare In general, there is nothing you have to do before this test, unless your doctor … sample, usually from the arm. How It Feels You may feel nothing at all from the needle, or you may feel a quick sting …
Medical tests
… vitamin B12 test measures the amount of vitamin B12 in the blood. The body needs this B vitamin to make blood cells and … around your upper arm. It may feel tight. You may feel nothing at all from the needle, or you may feel a quick sting … around your upper arm. It may feel tight. You may feel nothing at all from the needle, or you may feel a quick sting …
Medical tests
… Test Overview A breath alcohol test is an estimate of your blood alcohol concentration (BAC). The test measures the … like those used by police for suspected drunk drivers. Within minutes after you drink alcohol, your blood alcohol … like those used by police for suspected drunk drivers. Within minutes after you drink alcohol, your blood alcohol …
Medical tests
… for several reasons. It may be used to look for a blocked blood vessel. It may be used to find the cause of pain in … tool during a biopsy. How to Prepare In general, there's nothing you have to do before this test, unless your doctor … this test. Results The scans from the test will be read within a short time. Ultrasound Normal: The organs, tissues, …
