A nurse is working with a client on the medical unit being treated for a bacterial infection of the urinary tract. Exhibits The nurse is preparing to administer the first dose of an antibiotic to a patient admitted for a urinary tract infection. Which most important action should the nurse take prior to administering the antibiotic? Click on the highlighted text below that best answers the question. A. Administering a small test dose to determine whether hypersensitivity exists. B. Having epinephrine available in the event of a severe hypersensitivity reaction. C. Monitoring the client’s temperature and blood pressure. D. Obtaining a urine specimen for culture and sensitivity.