329 results found
Medical tests
… Fetal ultrasound is a test done during pregnancy that uses reflected sound waves. It produces a picture of the … also includes blood tests that measure the levels of two substances that may be related to birth defects. Why It Is … also includes blood tests that measure the levels of two substances that may be related to birth defects. Why It Is …
Medical tests
… test also looks at other cells in the retina. It may be used to check for problems such as: Retina damage from drugs or other substances. Loss of central or peripheral vision from retina … for problems such as: Retina damage from drugs or other substances. Loss of central or peripheral vision from retina …
Medical tests
… a scan to look at kidney function, a radioactive tracer substance is injected into a vein in the arm and then … a triple renal study). Different radioactive tracers are used depending on what kind of scan is being done. Areas of … a scan to look at kidney function, a radioactive tracer substance is injected into a vein in the arm and then …
Medical tests
… body. During this test, a small amount of a radioactive substance called a tracer is injected into a vein. A gamma … Are or might be pregnant. Have recently had any test that uses a radioactive tracer, such as a bone scan or thyroid … body. During this test, a small amount of a radioactive substance called a tracer is injected into a vein. A gamma …
Medical tests
… Information Test Overview Helicobacter pylori tests are used to detect a Helicobacter pylori ( H. pylori ) infection … . Stool antigen test. A stool antigen test checks to see if substances that trigger the immune system to fight an H. … . Stool antigen test. A stool antigen test checks to see if substances that trigger the immune system to fight an H. …
Medical tests
… These tests tell how well your kidneys are working. Another substance, creatine (say "KREE-uh-teen"), is formed when … of blood creatinine and blood urea nitrogen (BUN) can be used to find the BUN-to-creatinine ratio. This ratio can … These tests tell how well your kidneys are working. Another substance, creatine (say "KREE-uh-teen"), is formed when …
Medical tests
… naturally become thinner as you grow older. This is because existing bone tissue is broken down faster than new bone … photon absorptiometry (DPA). This test uses a radioactive substance to measure bone density. It can measure bone … photon absorptiometry (DPA). This test uses a radioactive substance to measure bone density. It can measure bone …
Medical tests
… by testing a sample of your blood or urine. The test is used to see if you smoke or use other forms of tobacco. All forms of tobacco have … require a test before you can get insurance. This is because people who smoke tend to have higher health costs over …
Medical tests
… Overview Magnetic resonance imaging (MRI) is a test that uses a magnetic field and pulses of radio wave energy to … an operating room. In some cases, contrast material may be used during the MRI scan to show certain structures more … resonance imaging (MRI) is done for many reasons. It is used to find problems such as tumours, bleeding, injury, …
Medical tests
… Information Test Overview Magnetic resonance imaging (MRI) uses a magnetic field and pulses of radio waves to make pictures of the breast. It does not use X-rays. MRI may show problems in the breast that can't … lumps. In most cases, a dye ( contrast material ) may be used so that abnormalities can be seen more clearly from …
