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27 Cards in this Set
- Front
- Back
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Types of contrast media |
Positive contrast media Negative """""" Ionic"'''''""" Non-ionic""''''''' |
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These are water soluble, don't dissociate into ions in solution and thus have lower osmolarity and lower incidence of adverse reaction |
Non-ionic contrast media |
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Most are tri-iodinated derivatives of benzoic acid |
Ionic contrast media |
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Other term for ionic contrast media |
Ionic iodinated contrast media |
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Most common types of positive contrast media used are |
Barium and iodinated compounds |
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Absorb xrays efficiency and are more radioopaque than soft tissue |
Positive contrast media |
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Most common contrast media reaction |
Nausea and vomiting Skin erythema Facial swelling Pulmonary edema Osmotic dieresis Hypotension Local irritation at the injection site |
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Less common contrast media reactions |
Laryngeal edema Vascular collapse Cerebral edema and seizures Arrythmias Renal failure Death |
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Invented crookes tube |
William crookes |
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Plate coated barium platinocyanide |
Crookes tube |
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Father of xray |
Wilhelm Conrad Roentgen |
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T/F Radiographic contrast procedures use positive and negative contrast media to enhance the visualization of individual organs |
True |
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T/F Contrast clearance occurs more slowly in the brain than in other organs |
True |
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Alternate routes of excretion (2%) of iodinated and nonionic contrast media are through |
Biliary system Small bowel mucosa |
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Is dine after intravenous injection of iodinated contrast media to visualize the kidneys, ureters, and urinary badder |
Progressive radiographic study |
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Is the procedure of choice to evaluate for bladder wall integrity and bladder position |
Positive contrast cystography |
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Least referred. There is increased risk of air embolism esp in severe hematuria. Bladder wall thickness, most calculi and mural lesion may be seen |
Pneumocystography |
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Provides the best mucosal detail and is optimal to assess for calculi and mural masses |
Double contrast cystography |
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Study that uses retrograde infusion of positive contrast media for a morphologic evaluation of the vagina, cervix and urethra |
Vaginography |
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A contrast study of the urethra usually is made by using positive contrast media to evaluate the location and morphology of urethra. |
Urethrography |
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Most often used to evaluate for stricture, rupture, neoplasia, calculi, prostatic urethra |
Urethography |
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Radiographic study is done using posotive contrast media to evaluate esophageal lication or morphology. |
Esophagography |
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The optimum technique for the assessment of esophageal motility and function |
Fluoroscopy |
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Contrast evaluation of the urinary bladder |
Cystography |
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Is a radiographic contrast study of the stomach that uses negative, positive, double contrast techniques for evaluation of fast ic morphology and function |
Gastrography |
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Is a radiographic study using positive contrast media to provide functional and morphologic evaluation of the small intestine |
Upper gastrointestinal study |
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Is a radiographic study made with retrograde infusion of negative contrast, positive contrast or both for the.morphologic assessment of the large bowel |
Barium enema |
