329 results found
Medical tests
… endoscopy may be done to: Find what's causing you to vomit blood. Find the cause of symptoms, such as upper belly pain … GI tract, someone may change your position or apply gentle pressure to your belly. After the examination is done, the … away on its own without treatment. The risk of problems is higher in people who have serious heart disease. It's also …
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 … to determine whether a person is legally impaired and should not drive. In Canada, the federal maximum blood …
Medical tests
… The vibration speed of a sound wave determines how high or low a sound is (pitch). The height of the sound wave … Talk to your doctor about whether your child has been or should be tested. To screen children and teens for hearing … in older adults. Hearing loss in older adults is often mistaken for a reduced mental ability. (For example, a person …
Medical tests
… inflammation, or cancer. The doctor may use the tube to take a sample of tissue from the area. This is called a … ). It is often done to check lymph nodes to see if you should have lung removal surgery to treat lung cancer. … each possible biopsy result. Your doctor may order certain blood tests, such as a complete blood count or clotting …
Medical tests
… how much human immunodeficiency virus (HIV) is in the blood. The test measures the amount of the genetic material … with the baseline. With good treatment, the viral load should go down. Within a few months of treatment, the virus … to. How It Is Done A health professional uses a needle to take a blood sample, usually from the arm. How It Feels When …
Medical tests
… (BNP) test measures the amount of the BNP hormone in your blood. BNP is made by your heart and shows how well your … test. How It Is Done A health professional uses a needle to take a blood sample, usually from the arm. How It Feels When … bruise may form at the site. Results Normal BNP values are higher in women than in men. BNP values normally increase …
Medical tests
… store or empty bile properly. During a HIDA scan, a camera takes pictures of your gallbladder after a radioactive … the substance used to stimulate the gallbladder. Sometimes medicine (morphine sulfate) is given to help find out if the … Abnormal: The tracer may not be removed normally from the blood by the liver. This may be a sign of liver disease. The …
Medical tests
… that covers the brain and spinal cord. Problems with the blood vessels to the spine. This test may help find the … to numb the skin on your back. You will also feel some pressure as the long, thin spinal needle is put into your … So if you lie down, you need to keep your head raised higher than your body. There is a small risk of infection at …
Medical tests
… cardiac calcium scoring. The coronary arteries supply blood to the heart muscle. Normally, the coronary arteries … scan if other test results are not clear about whether you should start treatment to reduce your risk of coronary … test results. This means that the test shows a high chance of plaque in the arteries of the heart when it …
Medical tests
… angle ). A camera may be attached to the slit lamp to take pictures of different parts of the eye. Fluorescein dye … ophthalmoscopy, vision testing, and tonometry (to measure pressure in the eye). To look at structures in the back of … the iris and cornea (hyphema) from a sudden break in a blood vessel or as a result of an injury to the eye. Signs …
