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Medical tests
… Imaging (MRI) of the Spine On this page: Test Overview Health Tools Why It Is Done How To Prepare How It Is Done … It Feels Risks Results Test Overview An MRI is a test that uses a magnetic field and pulses of radio wave energy to … that can't be seen with other imaging tests. For an MRI, your body is placed inside a machine that contains a strong …
Medical tests
… DNA from cells attached to the root of the hair. It can be used to find out if people are related. Forensic hair … samples do not show recent changes in the body, such as drug use within the past few days. But a hair analysis may … lab will give you specific instructions on how to prepare your hair. Hair preparation and the part of your body from …
Medical tests
… Overview A medicine blood level test measures how much of your medicine is in your blood. Your doctor checks it to … and effective dose. This testing is also called therapeutic drug monitoring. Why It Is Done Seizure medicines are usually monitored because: At a low blood level, they don't control seizures as …
Medical tests
… Overview A medicine blood level test measures how much of your medicine is in your blood. Your doctor checks it to … and effective dose. This testing is also called therapeutic drug monitoring. This information is about medicines that are not used to control seizures. Why It Is Done Certain types of …
Medical tests
… Information Test Overview A genetic test checks the DNA of your cells. It can find changes in your genes or chromosomes that may cause a genetic illness. The results may tell you about your ancestry, your health, or your risk for certain diseases. Testing can be …
Medical tests
… about a sudden death that appears to be from natural causes. If there are concerns about genetic problems that … of any injury. Examples include a fall, a car crash, a drug overdose, or poisoning. Are suspicious, such as a … will allow the doctor doing the examination to answer your questions about the death. How It Is Done Before the …
Medical tests
… alcohol test measures the amount of alcohol (ethanol) in your body. Alcohol is quickly absorbed into the blood and … the central nervous system. A blood alcohol test is often used to find out whether you are legally drunk or … if you do not eat before or while you drink. Medicines or drugs. A person who drinks alcohol and takes certain …
Medical tests
… if a person has a chance of getting certain diseases that cause the body to attack its own cells, such as autoimmune … succeed. A better match may mean that fewer anti-rejection drugs will be needed. The more similar the antigen patterns … there's nothing you have to do before this test, unless your doctor tells you to. If you are donating tissue or …
Medical tests
… makes ALT levels go up. Most increases in ALT levels are caused by liver damage. The ALT test is often done along with … such as cirrhosis and hepatitis, caused by alcohol, drugs, or viruses. Help check for liver damage. Find out … 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
… looks for the genetic material ( RNA ) of the virus that causes hepatitis or for the proteins ( antibodies ) the body makes against HCV. These proteins will be present in your blood if you have a hepatitis C infection now or have … more likely to have been exposed to the virus if you inject drugs or are exposed to body fluids (such as if you are a …