Contrast may be necessary for suspected infections or inflammations. Contrast is helpful in distinguishing orbital cellulitis from abscess. However, contrast is not mandatory to rule out orbital inflammation or postseptal involvement. Relative ...
The second most commonly used medications in CT were nitrates (n = 49,471, 24.0%) for vasodilation of the coronary arteries. Drugs for sedation (n = 556, 0.3%), premedication for known or suspected contrast media allergy (n = 416, 0.2%), or perchlorates for hyperthyroidism...
Premedication with antihistamines or corticosteroids does not prevent serious life-threatening reactions but may reduce both their incidence and severity. Obtain a history of allergy, hypersensitivity, or hypersensitivity reactions to iodinated contrast agents and have emergency resuscitation equipment and ...
Allergy to i.v. contrast agents. If a PET/CT examination with i.v. contrast is required (see example above), it is important to be aware of any previous contrast reaction(s), which are classified as either idiosyncratic (anaphylactoid) or non-idiosyncratic. Premedication reduces the risk of...
beta-Blocker premedication does not increase the frequency of allergic reactions from coronary CT angiography: Results from the Advanced Cardiovascular Imaging ConsortiumCoronary CTAbeta-BlockersContrast allergyRadiocontrast mediaAnaphylaxisBackground: beta-Blockers are often used for heart rate control during...
Even with adequate premedication and the changing of contrast media, up to one-third of patients in the study experiencedallergic reactions—a finding that underscores the importance of a nationwide registry for ICM-related HSRs as the basis for establishing a strategy to prevent recurrent HSR. ...
Allergy to contrast agents. If an FDG PET/CT examination with intravenous CT contrast agent is strictly necessary the referring physician must indicate the premedication protocol to prepare the patient. Renal function. Creatinine and/or glomerular filtration should be evaluated, according to national gui...
In such cases, kidney function and history of contrast allergy should be verified before intravenous contrast injection. The administration of contrast media and premedication should follow local chest CT radiological protocols. If no diagnostic thoracic CT is available, it should be considered to ...