ARRT CT Practice Questions - ARRT Computed Tomography (Postprimary) Exam

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Case 001 (Patient Screening): A 58-year-old male presents for a contrast-enhanced abdominal CT. His medical history includes type 2 diabetes managed with metformin. His most recent eGFR is 28 mL/min/1.73 m². What is the most appropriate course of action?

Proceed with iodinated contrast as planned since metformin can be resumed immediately after. Withhold the contrast and consult the ordering physician before proceeding. Administer half the normal contrast dose to reduce kidney risk. Replace iodinated contrast with gadolinium-based contrast for the CT scan.

Correct Answer:

Withhold the contrast and consult the ordering physician before proceeding.

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