329 results found
Medical tests
… test. This test can also be done on a urine sample. If you have chlamydia, all of your sex partners from the last … is being done on a urine sample, do not urinate for 2 hours before the sample is collected. How It Is Done Urine sample … Collect the first part of your urine stream, just as you start to urinate. Direct sample In a direct sample, a sample …
Medical tests
… the mouth and gently moved down the throat. It goes through your esophagus , stomach, and duodenum until it reaches the … for the procedure You may need to stop eating and drinking before the day of the procedure. If this is the case, your … notice a brief, sharp burning or stinging when the IV is started in your arm. The local anesthetic sprayed into your …
Medical tests
… are done to: Monitor how the HIV infection is affecting your immune system. Help diagnose acquired immune deficiency … infections ( opportunistic infections ). Decide when to start treatment to prevent opportunistic infections, such as … health, and your prior CD4+ count results. How To Prepare Before you have this test, you may have the opportunity to …
Medical tests
… Overview A transesophageal echocardiogram is a test to help your doctor look at the inside of your heart. A small device … instructions exactly about when to stop eating and drinking before the test. This may be about 8 hours. Be sure to tell … it easier to insert the probe. Shortly before the procedure starts, an IV line will be placed in a vein in your arm. …
Medical tests
… Screening tests are used to see what the chance is that your baby has a certain birth defect. If a screening test is … Defects? How To Prepare You do not need to do anything before you have this test. If you are pregnant, you will be … you. In pregnant women, the amount of AFP gradually rises starting in the 14th week of pregnancy. It continues to rise …
Medical tests
… Test Overview Laryngoscopy is an examination that lets your doctor look at the back of your throat, your voice box … laryngoscopy In general, there's nothing you have to do before this test, unless your doctor tells you to. Direct … until you are able to swallow without choking. You can then start with sips of water. When you feel ready, you can eat a …
Medical tests
… the blood. Reticulocytes are in the blood for about 2 days before developing into mature red blood cells. The … altitudes may cause reticulocyte counts to rise, to help you adjust to the lower oxygen levels at high altitudes. Why … , iron deficiency anemia , or folic acid deficiency anemia starts working. Low values A low reticulocyte count may mean …
Medical tests
… of calcium in the body depends on the amount of: Calcium you get in your food. Calcium and vitamin D your intestines … diet that is either high or low in calcium for several days before the test. How It Is Done Urine calcium is measured in … from all the urine made in a 24-hour period. Urine test You start collecting your urine in the morning. When you first …
Medical tests
… the neck that carry blood to the brain. The test may help your doctor decide if a procedure is needed to open a … How To Prepare Do not eat or drink for 4 to 8 hours before the angiogram. You may be asked to not take aspirin, … hours, so you will empty your bladder just before it starts. During the test You will likely have an intravenous …
Medical tests
… a test that measures and records the electrical activity of your brain. Special sensors called electrodes are attached … doctor will tell you if you should stop taking any of them before the test and how soon to do it. Do not eat or drink … This is normal. It will go away a few minutes after you start breathing normally again. Risks An EEG is a very safe …
