321 results found
Medical tests
… How To Prepare How It Is Done How It Feels Risks Results Related Information Test Overview The inhibin A … result means that the level of the hormone inhibin A is low, or negative. An abnormal result means the level of the hormone inhibin A is high, or positive. footnote 1 The level of the hormone must …
Medical tests
… How To Prepare How It Is Done How It Feels Risks Results Related Information Test Overview 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 …
Medical tests
… How To Prepare How It Is Done How It Feels Risks Results Related Information Test Overview Prothrombin time (PT) is a … made longer by: Blood-thinning medicine, such as warfarin. Low levels of blood clotting factors. A change in the … with artificial heart valves, because these valves have a high chance of causing clots to form. Abnormal values A …
Medical tests
… How To Prepare How It Is Done How It Feels Risks Results Related Information Test Overview Allergy testing involves … A small amount of a suspected allergen is placed on or below the skin to see if a reaction develops. There are three … make in response to certain allergens. IgE levels are often higher in people who have allergies or asthma. Other lab …
Medical tests
… How To Prepare How It Is Done How It Feels Risks Results Related Information Test Overview A phenylketonuria (PKU) … drinking breast milk or formula. Babies with PKU need foods low in phenylalanine to prevent severe brain damage. … site. Results If the heel stick screening test shows high phenylalanine levels, a blood sample is taken from your …
Medical tests
… How To Prepare How It Is Done How It Feels Risks Results Related Information Test Overview A radioactive iodine … you if and when you need to stop taking any of the following medicines that can change the RAIU test results: … too much thyroid medicine, or another rare condition. A high uptake of tracer spread evenly in the thyroid gland may …
Medical tests
… How To Prepare How It Is Done How It Feels Risks Results Related Information Test Overview A magnesium test checks the level of magnesium in the blood. Magnesium is an important electrolyte needed for … and muscle weakness. Find the cause of symptoms such as low blood pressure, nausea, vomiting, diarrhea, dizziness, …
Medical tests
… How To Prepare How It Is Done How It Feels Risks Results Related Information Test Overview Tests for erection … nerves of the penis. Problems such as multiple sclerosis or diabetes may cause nerve damage. Surgery, injury, or … Side effects of medicines, such as medicines taken for high blood pressure or depression. The use of tobacco, …
Medical tests
… How To Prepare How It Is Done How It Feels Risks Results Related Information Test Overview An antinuclear antibody … tests can find out which antibodies are in the blood in higher amounts than normal. Sometimes ANA test results can … the test is positive, the level of antibodies is usually low. Some healthy people can have an increased amount of ANA …
Medical tests
… Complement Test On this page: Overview Related Information Overview A complement test uses a blood sample to detect a group of proteins that help the … substances in the body, such as bacteria or viruses, a low level of complement means the body is trying to get rid …
