329 results found
Medical tests
… node tissue to look for cancer. A sentinel node biopsy is used to see if a known cancer has spread from the original … the arm. Your doctor injects a blue dye or special tracer substance or both into the area around the original cancer … the arm. Your doctor injects a blue dye or special tracer substance or both into the area around the original cancer …
Medical tests
… can include infection (such as from parasites , viruses , or bacteria ), poor nutrient absorption, or cancer. … bile , white blood cells , and sugars called reducing substances. The pH of the stool also may be measured. A … bile , white blood cells , and sugars called reducing substances. The pH of the stool also may be measured. A …
Medical tests
… Test Overview A mammogram is an X-ray of the breast that is used to screen for breast cancer . Mammograms can find … or on your breasts. The residue left on your skin by these substances may interfere with the X-rays. How It Is Done You … or on your breasts. The residue left on your skin by these substances may interfere with the X-rays. How It Is Done You …
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
… problems at school, work, or home. For example, it may be used to find out if a child has a learning disability , … . Intellectual disability . Autism spectrum disorder . Substance use disorder . Diseases of the nervous system, … . Intellectual disability . Autism spectrum disorder . Substance use disorder . Diseases of the nervous system, …
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 …
