The client scheduled to have an intravenous urogram is a diabetic and taking the antidiabetic agent metformin. What should the nurse tell this client?
A. "Call your diabetes doctor and tell him or her that you are having an intravenous urogram performed using dye."
B. "Do not take your metformin the morning of the test because you are not going to be eating anything and could become hypoglycemic."
C. "You must start on an antibiotic before this test because your risk of infection is greater as a result of your diabetes."
D. "You must take your metformin immediately before the test is performed because the IV fluid and the dye contain a significant amount of sugar."
A
Metformin can cause a lactic acidosis and renal impairment as an interaction with the dye. This drug must be discontinued for 48 hours before the procedure and not started again after the pro-cedure until urine output is well established.
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