329 results found
Medical tests
… generally nothing you have to do before this test, unless your doctor tells you to. How It Is Done Blood sample from a … There is very little risk of a problem from a heel stick. Your baby may get a small bruise at the puncture site. Blood … in adults Each lab has a different range for what's normal. Your lab report should show the range that your lab uses for …
Medical tests
… people have one of four blood types: A, B, AB, or O. If your red blood cells have: The A antigen. You have type A blood. The liquid portion of your blood (plasma) has antibodies that attack type B blood. … (A+) blood. The B antigen. You have type B blood. Your plasma has antibodies that attack type A blood. About 9 …
Medical tests
… Test Overview A contraction stress test checks to see if your baby will stay healthy during contractions when you are … During a contraction, the blood and oxygen supply to your baby drops for a short time. This is not a problem for … hormone causes uterine contractions. You may also massage your nipples. This tells your body to release oxytocin. …
Medical tests
… tomography (CT) scan . For an MRI of the head, you lie with your head inside a special machine (scanner) that has a … there's nothing you have to do before this test, unless your doctor tells you to. Tell your doctor if you get nervous in tight spaces. You may get …
Medical tests
… scan. A radioactive tracer is injected into a vein in your arm. It travels through your blood and into the lungs. Pictures from this scan can … The radioactive tracer used in this test can get into your breast milk and is not good for the baby. How It Is …
Medical tests
… for 1 to 2 weeks before you have the test. Be sure to tell your doctor about all the non-prescription and prescription medicines you take. Be sure to tell your doctor if you have: Recently had an X-ray test using … if you have travelled outside the country. This helps your doctor look for the parasites, fungi, viruses, or …
Medical tests
… cord and brain that you need to urinate. In response, your spinal cord sends a signal for the bladder to contract (voiding reflex). When you hold in your urine, your brain is overriding this reflex. When you allow the …
Medical tests
… Test Overview A cardiac blood pool scan shows how well your heart is pumping blood to the rest of your body. During this test, a small amount of a radioactive … To Prepare Before having a cardiac blood pool scan, tell your health professional if you: Are allergic to any …
Medical tests
… the level of immunoglobulins, also known as antibodies , in your blood. Antibodies are substances made by the body's … reactions. Occasionally, antibodies may be made against your own tissues. This is called an autoimmune disease . If your immune system makes low levels of antibodies, you may …
Medical tests
… These tests measure electrical activity that occurs in your eye when you look at something. Electrophysiology … problems of the retina. A full-field ERG can check how well your entire retina is working. A multifocal ERG (mfERG) … special to prepare for the tests. Follow any instructions your doctor gives you about what to do before your test. For …
