329 results found
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 … is a blood test that measures a substance that is released when a blood clot breaks up. Doctors order the d-dimer test, … from the arm. How It Feels When a blood sample is taken, you may feel nothing at all from the needle. Or you might …
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 … ( RNA ) of HIV in the blood. Viral load is first measured when you are diagnosed with HIV infection. This first measurement …
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 … levels of both renin and aldosterone are normally present when the body is trying to conserve fluid and salt (sodium). … write down the time. Do not get toilet paper, pubic hair, stool (feces), menstrual blood, or anything else in your …
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 … insulin . This is because insulin and C-peptide are linked when first made by the pancreas. Insulin helps the body use … the cause of low blood sugar (hypoglycemia). How To Prepare Your doctor will give you instructions about eating and …
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 … detect carbon monoxide poisoning . Poisoning can happen if you breathe air that contains too much carbon monoxide (CO). … This gas has no colour, odour, or taste, so you can't tell when you are breathing it. The test measures the amount of …
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 … partly controls serum osmolality. Water constantly leaves your body as you breathe, sweat, and urinate. If you do not … of chemicals in your blood (serum osmolality) increases. When serum osmolality increases, your body releases ADH. …
Medical tests
… Tests On this page: Test Overview Why It Is Done How To Prepare How It Is Done How It Feels Risks Results Related … different functions of the eye. Some of the tests measure your ability to see details at near and far distances, check … errors, such as nearsightedness or farsightedness , occur when light rays entering the eye can't focus exactly on the …
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 … D-xylose is normally easily absorbed by the intestines . When problems with absorption occur, D-xylose is not … and record the time. Do not get toilet paper, pubic hair, stool (feces), menstrual blood, or other foreign matter in …
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 … 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 …
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 … are done to: Monitor how the HIV infection is affecting your immune system. Help diagnose acquired immune deficiency … for other infections ( opportunistic infections ). Decide when to start treatment to prevent opportunistic infections, …
