A 62-year-old with suspected contrast allergy requires contrast-enhanced CT. Best premedication per ACR manual?...

Question

A 62-year-old with suspected contrast allergy requires contrast-enhanced CT. Best premedication per ACR manual?

Accepted Answer

Prednisone 50 mg PO at 13, 7, and 1 hour pre-contrast plus diphenhydramine

Answer

No premedication needed for any history

Answer

Only diphenhydramine at time of scan

Answer

Epinephrine autoinjector before scan

Answer

Montelukast only

us-abem MCQ (SBA): Contrast Reaction Premedication