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8 Cards in this Set
- Front
- Back
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What are the phases of CT enhancement?
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1) noncontrast
2) arteriographic or early arterial 3) corticomedullary or late arterial 4) nephrogenic 5) excretory |
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What is evaluated during the non-contrast phase of a CT?
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presence of calcifications
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What is evaluated during the arteriographic/early arterial phase of a CT?
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eval of arterial pathology
ie. fibromuscular dysplasia |
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What is evaluated during the corticomedullary/late arterial phase of a CT?
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renal masses that demonstrate very rapid enhancement
hypervascular lesions |
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What is evaluated in the nephrogenic phase of a CT?
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standard phase to eval abd/pelvic viscera, including the urinary tract
renal masses |
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What is evaluated in the excretory phase of a CT?
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collecting system
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What can you give to decrease contrast induced nephropathy?
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acetylcysteine (mucomyst) 600mg BID day before and day of study
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What can you give to a patient who has had a previous contrast reaction?
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prednisone or methylprenisolone
cimetidine or ranitidine benadryl give 12 and 2 hours before study |
