a client is scheduled for a spiral computed tomography (ct) scan with contrast to evaluate for a pulmonary embolism. which information in the client's history requires follow-up by the nurse? a. report of client's sobriety for the last five years. b. takes metformin hydrochloride for type 2 diabetes mellitus. c. metal hip prothesis was placed twenty years ago. d. ct scan that was performed six months earlier. b.