Which factors require assessment of patient renal function prior to administration of intravascular contrast material?
- • Patient age >60
- • History of renal disease, including:
- • Dialysis
- • Renal transplant
- • Single kidney
- • Renal cancer
- • Renal surgery
- • History of hypertension requiring medical therapy
- • History of diabetes mellitus
- • Metformin or metformin-containing drug combinations (for iodinated contrast material administration only)
At our institution, when the serum creatinine level is ≤ 1.4 mg/dL, iodinated contrast material can be administered, assuming that there are no other contraindications. When the serum creatinine level is between 1.5 and 1.9 mg/dL or rising, iodinated contrast material can still be administered, but only after a conversation with the referring physician has taken place to discuss the risks and benefits of administering contrast material and possible diagnostic test alternatives. When the serum creatinine level is ≥ 2.0 mg/dL, iodinated contrast material is generally not administered unless there is an urgent medical necessity.