A client is scheduled for a CT of the brain with and without IV contrast dye to evaluate a possible hemorrhage. Which finding in the client’s history should the nurse report immediately to the health care provider?

  1. allergy to shellfish
  2. history of schizophrenia
  3. allergy to cephalosporins
  4. presence of a pacemaker
Number 1 is correct.
Rationale: Shellfish allergy is a possible contraindication to IV contrast medium. Depending on the severity of the allergy, IV diphenhydramine may be given. A history of schizophrenia and allergy to cephalosporins is not a contraindication to contrast dye. The presence of a pacemaker does not affect the use of contrast dye.