329 results found
Medical tests
… into a vein in the arm and then travels through the bloodstream to the kidneys. The tracer flows through the … done. Areas of the kidneys where the tracer shows up in higher-than-normal amounts, such as in some types of cancer, … narrowed renal arteries that can cause a type of high blood pressure called renovascular hypertension. See how a …
Medical tests
… (also called an echo) uses sound waves to make an image of your heart. A device called a transducer sends sound waves … chest pains. Check how well your heart is pumping blood. Check to see how well your heart valves are working. … size and shape of the heart's chambers. Measure the blood pressure and speed of blood flow through the heart. How to …
Medical tests
… Help find the cause of symptoms such as rectal bleeding (blood in the stool), belly or pelvic pain, a change in … hemorrhoids. How To Prepare If you have hemorrhoids, tell your doctor before the examination begins. Your doctor will … press firmly on the prostate to feel for problems. This pressure may make you feel the need to urinate. The …
Medical tests
… Information Test Overview Prothrombin time (PT) is a blood test that measures how long it takes blood to clot. A … time tests, no matter the testing method. It lets your doctor understand results in the same way even when … with artificial heart valves, because these valves have a high chance of causing clots to form. Abnormal values A …
Medical tests
… a baby with a genetic condition or neural tube defect is higher than average. Amniocentesis can tell the sex of your … is covered with a bandage. Your fetus's heart rate and your blood pressure, pulse, and breathing will be checked before, …
Medical tests
… A magnesium test checks the level of magnesium in the blood. Magnesium is an important electrolyte needed for … weakness. Find the cause of symptoms such as low blood pressure, nausea, vomiting, diarrhea, dizziness, muscle … Results Each lab has a different range for what's normal. Your lab report should show the range that your lab uses for …
Medical tests
… This test measures the amount of lead in a person's blood. Lead is a poisonous (toxic) metal that can damage the … or who live in places where the chance of poisoning is high, such as in a large city. Check for the amount of lead … there's nothing you have to do before this test, unless your doctor tells you to. Be sure to tell your doctor if you …
Medical tests
… A C-peptide test measures the level of this peptide in the blood. It is generally found in amounts equal to insulin . … A person with type 2 diabetes can have a normal or high level of C-peptide. A C-peptide test can also help find … the cause of low blood sugar (hypoglycemia). How To Prepare Your doctor will give you instructions about eating and …
Medical tests
… found in milk and milk products. A galactosemia test is a blood or urine test that checks for enzymes that are needed to change galactose into glucose, a sugar that your body uses for energy. A person with galactosemia doesn't have one of these enzymes, so high levels of galactose build up in the blood or urine. …
Medical tests
… the back of the baby's neck. This screening also includes blood tests that measure the levels of two substances that … a transabdominal ultrasound, you may have a feeling of pressure in your bladder. The gel may feel cool when it is … a fetus. Keepsake centres may use the ultrasound machine at higher energy levels and for longer times than needed in …
