329 results found
Medical tests
… On this page: Test Overview Why It Is Done How To Prepare How It Is Done How It Feels Risks Results Related … certain non-cancerous lung conditions. It may also be done when lung cancer is suspected. A sputum sample may be … if the sputum sample is to be collected at home or in your doctor's office. Bronchoscopy sample Your doctor will …
Medical tests
… On this page: Test Overview Why It Is Done How To Prepare How It Is Done How It Feels Risks Results Related … between the heart and other structures in the chest when the heart beats. Some diseases cause fluid to collect … Find the cause of pericardial effusion. How To Prepare You may not be able to eat or drink for several hours before …
Medical tests
… Test On this page: Test Overview Why It Is Done How To Prepare How It Is Done How It Feels Risks Results Related … produced by cells, called G cells, in the stomach lining. When food enters the stomach, G cells trigger the release of … chew gum or smoke cigarettes for 4 hours before the test. You can drink as much water as you want up to 1 hour before …
Medical tests
… (EKG) On this page: Test Overview Why It Is Done How To Prepare How It Is Done How It Feels Risks Results Related … that checks for problems with the electrical activity of your heart. An EKG shows the heart's electrical activity as … to control the heartbeat. Check the health of the heart when other diseases or conditions are present. These include …
Medical tests
… Test On this page: Test Overview Why It Is Done How To Prepare How It Is Done How It Feels Risks Results Related … prolactin, which is made by the pituitary gland , in your blood. Pregnant women have high levels of prolactin, … a hard time becoming pregnant ( infertile ). In a man when a pituitary gland problem is suspected. Also, a …
Medical tests
… On this page: Test Overview Why It Is Done How To Prepare How It Is Done How It Feels Risks Results Related … 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 …
Medical tests
… Test On this page: Test Overview Why It Is Done How To Prepare How It Is Done How It Feels Risks Results Related … body uses energy and other substances through the blood. When prealbumin levels are lower than normal, it may be a sign of a poor diet (malnutrition). Your doctor may use the results of this test to make changes …
Medical tests
… Test On this page: Test Overview Why It Is Done How To Prepare How It Is Done How It Feels Risks Results Related … glands then make a hormone called cortisol, which helps your body manage stress. Cortisol is needed for life, so its levels in the blood are closely controlled. When cortisol levels rise, ACTH levels normally fall. When …
Medical tests
… Test On this page: Test Overview Why It Is Done How To Prepare How It Is Done How It Feels Risks Results Related … The hepatitis A virus test is a blood test that shows if you have a hepatitis A infection now or had it in the past. … 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
… Test On this page: Test Overview Why It Is Done How To Prepare How It Is Done How It Feels Risks Results Related … for it. How To Prepare In general, there's nothing you have to do before this test, unless your doctor tells … test takes The test will take a few minutes. How It Feels When a blood sample is taken, you may feel nothing at all …
