Protocol Number: 01-C-0157
Tests and procedures required for determining eligibility depend on the specific study for which the patient is being considered. Some of the more common tests and procedures are: - History and physical examination - Blood and urine samples - for routine laboratory tests and possibly research studies - Quality of life assessment questionnaire - Magnetic resonance imaging (MRI) scan - uses a magnetic field and radio waves to produce pictures of body structures, including tumors - Computerized tomography (CT) scan - uses radiation to produce multiple detailed pictures of body structures - X-rays - uses radiation to provide a single picture of a body part - Nuclear medicine scans - uses a chemical tagged with a radioactive substance to detect tumors, measure kidney or heart function, or monitor the flow of cerebrospinal fluid (fluid that bathes the brain and spinal cord) - Electrocardiogram (EKG) - uses electrodes placed on the skin to evaluates heart rate and rhythm by measuring electrical impulses from the heart - Echocardiogram - uses high-frequency sound waves to evaluate heart structure and function - Lumbar puncture - tests for cancer cells and other substances in cerebrospinal fluid. Involves placing a needle into the lower back between the bones of the spine and withdrawing a fluid sample from the fluid-containing space below the spinal cord - Ommaya reservoir - surgically implanted catheter inserted into the fluid-filled ventricles of the brain, used to withdraw spinal fluid samples and to give medication - Eye examination - vision test and eye examination - Biopsies - removal of a small piece of tissue, by needle or by surgery, for examination under the microscope. An area of skin over the biopsy site is numbed with an anesthetic. For a needle biopsy, a needle is inserted into the tumor, tissue or bone marrow to pull out a small sample. A surgical biopsy may be done in the operating room, clinic, or hospital room, depending on the biopsy location. The tissue or tumor is removed by cutting a small piece of it with a sharp knife or scalpel and the area will be closed with sutures or staples.
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National Institutes of Health Clinical Center
Bethesda, Maryland 20892. Last update: 09/15/2008
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