rhisa scan…

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what the risks are lumbar puncture, radionuclide cisternogram, intrathecal scan, spinal cord scan, csf flow scan, cisternogram, a rhisa scan, nuclear scan test using small amounts of radioactive material, radioisotope, injected, cerebrospinal fluid, csf, to detect disorders of csf circulation, a rhisa scan, type of nuclear scan, small amounts of radioactive material, injected, cerebrospinal fluid, lower spine, cerebrospinal, cerebrospinal means around the brain, spinal cord, fluid is allowed to circulate, scanner, detect, radiation emitted by the materials, images, illustrate the flow of those radioactive materials, the cerebrospinal fluid circulation, a lumbar puncture, spinal tap, a radiopharmaceutical, drug tagged, a radioisotope indium 111, injected into the lumbar subarachnoid space, the space where cerebrospinal fluid flows around the spinal cord, brain, cerebrospinal fluid is allowed to circulate, tracer travels, scanned 4, 6 hours later, asked, lie flat on a table, placed beneath the arm, the scanner, resembles an x-ray machine, scanner detects, radiation, radioisotope, a series, scans, at 4, 6 hours after injection, again at 24 hours after injection, possibly again at 48, 72 hours after injection, should lie flat, lumbar puncture, prevent headache, lumbar puncture, no other special care, no preparation, very anxious, agitated, sedation necessary, must sign a consent form, wear a hospital gown to make the spine more accessible, remove jewelry, metallic objects, the scan, lumbar puncture, lower back over the spine is numbed, an anesthetic, find lumbar puncture somewhat uncomfortable, the pressure on the spine, insertion, the needle, scan is painless, the table cold, hard, no discomfort is produced by the radioisotope, scanner, test is performed to detect abnormalities of csf circulation, a normal value indicates normal circulation of csf, all parts, the brain, spinal cord, an abnormal study indicates disorders of csf circulation, hydrocephalus, csf leak, normal pressure hydrocephalus, nph, not a csf shunt is open, blocked, there is some risk any time lumbar puncture is performed, particularly a risk of infection, radionuclide cisternograms, no greater than, lumbar puncture is performed, reasons, small amount, radiation is produced by the radioisotope, radiation is very small, virtually, the radiation is gone, a few days, have been no documented cases of injury, radioisotope used, scan, radiation exposure, caution is advised, pregnant, breastfeeding, extremely rarely, develop an allergic reaction, radioisotope used, scan, a serious anaphylactic reaction this procedure, multiple scans, entire test, take 48 - 72 hours, must be able to lie still, scan.