A 58-year-old outpatient arrives in radiography for an intravenous urogram after a prior episode of generalized hives after iodinated contrast, currently taking metformin with a recent low eGFR noted in the chart. The patient asks if the exam can proceed today. Which medication history action and referral correctly addresses premedication and contraindication screening within the radiographer scope?
Select an answer to reveal the explanation.
Short Explanation
You're the safety checkpoint, not the prescriber. A careful history plus a quick handoff protects kidneys and airways, so document and refer is your correct scope here.
Full Explanation
The correct action reflects radiographer scope centered on complete history, risk identification and prompt escalation rather than independent prescribing or clearance. Generalized hives after iodinated contrast signals prior moderate hypersensitivity requiring radiologist-directed corticosteroid premedication, typically given over many hours before re-exposure, so contrast must be withheld today and rescheduled after prophylaxis planning. Concurrent metformin with recently low eGFR raises concern for contrast-induced kidney injury and lactic acidosis, requiring documentation and radiologist clearance for hydration, repeat creatinine and temporary interruption per protocol. The choice that documents and refers for renal clearance yet still administers contrast today fails on timing and safety because premedication cannot be completed same-day. The choice that withholds contrast and seeks premedication for hives but omits metformin and eGFR fails on completeness because renal and medication screening is explicitly required here. The choice that documents, withholds contrast and independently directs the patient to stop metformin fails on scope because altering prescription timing and granting clearance requires radiologist authorization. An exam caveat is that metformin with normal renal function often continues without interruption, while low eGFR, acute illness or prior allergy shifts care toward withholding and referral. A practical check is to verify hives onset, severity and treatment, metformin dose and last intake, most recent eGFR value and date, hydration and consent, then chart findings and the verbal referral before the patient leaves.