329 results found
Medical tests
… women for gestational diabetes. How To Prepare Tell your doctor about all the prescription and non-prescription … smoke, or do strenuous exercise for at least 8 hours before your first blood sample is taken. (You can drink water … doctor will also look at your results based on your age, health, and other factors. A value that isn't in the normal …
Medical tests
… (sodium). When a tumour that makes aldosterone is present, your aldosterone level will be high while a renin level will … tests. If you are having follow-up aldosterone blood tests, your doctor may give you the following instructions: Eat … levels are highest in the early morning. How It Is Done A health professional uses a needle to take a blood sample, …
Medical tests
… time (PTT) is a blood test that measures the time it takes your blood to clot. A PTT test can be used to check for … time is an important test because the time it takes your blood to clot may be affected by: Blood-thinning … and prescription medicines you take. How It Is Done A health professional uses a needle to take a blood sample, …
Medical tests
… Check for too much or too little iron in the blood. See if your diet is providing enough iron. Find out if treatment to keep the right amount of iron in your blood is working. How To Prepare Do not eat or drink … is often done first thing in the morning. How It Is Done A health professional uses a needle to take a blood sample, …
Medical tests
… the cause of low blood sugar (hypoglycemia). How To Prepare Your doctor will give you instructions about eating and … used to treat type 2 diabetes can change the test results. Your doctor may ask you to stop these medicines before your blood test. How It Is Done A health professional uses a needle to take a blood sample, …
Medical tests
… to see whether you are a Tay-Sachs carrier, you should tell your doctor if you have had a blood transfusion in the past 3 months. Talk to your doctor about any concerns you have about the need for … be done, or what the results may mean. How It Is Done A health professional uses a needle to take a blood sample, …
Medical tests
… as you want up to 1 hour before the test. Be sure to tell your doctor about all the non-prescription and prescription … minutes before the blood sample is drawn. How It Is Done A health professional uses a needle to take a blood sample, … the digestive hormone secretin is injected into a vein in your arm. More blood samples are taken at the time of the …
Medical tests
… (T3) and thyroxine (T4). T3 and T4 help control your body's metabolism . Triiodothyronine (T3) and thyroxine … there's nothing you have to do before this test, unless your doctor tells you to. How It Is Done A health professional uses a needle to take a blood sample, …
Medical tests
… prolactin, which is made by the pituitary gland , in your blood. Pregnant women have high levels of prolactin, … be asked to rest quietly for up to 30 minutes before having your blood drawn. Stimulation of the nipples can raise … to cause more discharge before the test. How It Is Done A health professional uses a needle to take a blood sample, …
Medical tests
… there's nothing you have to do before this test, unless your doctor tells you to. How It Is Done A health professional uses a needle to take a blood sample, … Normal Each lab has a different range for what's normal. Your lab report should show the range that your lab uses for …
