Indicator, Reagent, or Diagnostic Aid
iothalamic acid
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Definitions related to iothalamic acid:
  • A contrast medium in diagnostic radiology with properties similar to those of diatrizoic acid. It is used primarily as its sodium and meglumine (IOTHALAMATE MEGLUMINE) salts.
    NLM Medical Subject Headings
    U.S. National Library of Medicine, 2021
  • An ionic tri-iodinated benzoate used as a contrast agent in diagnostic imaging. Like other organic iodine compounds, iothalamic acid blocks x-ray and appears opaque on x-ray film, thereby enhancing the visibility of structure and organs during angiography, arteriography, arthrography, cholangiography, and computed tomography (CT) scanning procedures.
    NCI Thesaurus
    U.S. National Cancer Institute, 2021
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