The nurse is preparing a patient for a test that will involve the use of contrast media. Which finding in the patient's health history should be reported to the physician before the examination?

A. The patient's food allergies include shrimp: Individuals with shellfish allergies may be at risk for an allergic reaction to iodine-based contrast media. The nurse should report this to the physician as it could increase the likelihood of an allergic reaction during the procedure. B. The patient takes prescribed potassium supplements: While it is important to monitor potassium levels, taking potassium supplements is not directly related to the use of contrast media. There is no immediate concern. C. The patient did not take his morning dose of antihypertensive medication: This is generally not an urgent concern. Missing a dose of antihypertensive medication does not directly affect the safety or effectiveness of contrast media. D. The patient was not NPO for at least 6 hours: While it is important for the patient to be NPO before certain procedures, missing the fasting requirement may be an issue, but it is not as critical as a potential allergy to contrast media.