the iodine allergy is not pertinent. a pacemaker is a contraindication to magnetic resonance imaging but not to colonoscopy. the nurse should instruct the patient about the sedation used during the examination to decrease the patient’s anxiety about discomfort.dif: cognitive level: apply (application) ref: 849top: nursing process: assessment msc: nclex: health promotion and maintenance6.which statement to the nurse from a patient with jaundice indicates a need for teaching