The physician orders an MRI of the spine with infusion for an adult female. Which of the following findings in the client’s history should the nurse report to the physician?

  1. allergy to shellfish
  2. congestive heart failure (CHF)
  3. chronic cystitis
  4. metformin administered daily
Number 4 is correct.
Rationale: Metformin within 48 hours of a contrast study can result in lactic acidosis. The physician will need to withhold Metformin on the day of contrast administration and for an additional 48 hours; instead, use another hypoglycemic agent during this period. Allergy to shellfish is not a contraindication to the use of a contrast dye nor is CHF or chronic cystitis.