"although jenna had never given rob any reason to suspect her of being unfaithful to him, whenever jenna went out without him, rob constantly questioned her about her behavior and whereabouts when she returned. after rob's behavior started to become even more controlling, jenna finally told rob she didn't want to date him anymore. rob reacted with rage and more accusations. after the breakup, rob began following her. jenna finally got a restraining order to make him stop. in this scenario, rob is displaying behaviors that characterize personality disorder. a. paranoid b. borderline c. narcissistic d. antisocial"

A62-year-old man is being treated for an acute myocardial infarction. he originally came to the ed with substernal chest pain and diaphoresis. given his risk factors of hypertension, diabetes, tobacco use, and family history, he is considered high risk. an ecg in the ed reveals a left-bundle branch pattern, and cardiac enzymes are elevated slightly. after a focused evaluation in the ed, the patient receives iv thrombolytics. although his bundle branch pattern never resolves, the patient is chest pain-free and haemodynamically stable after thrombolysis. two days later, however, the patient reports episodes of recurrent chest discomfort and shortness of breath overnight. in evaluating for potential myocardial reinfarction, which of the following is the most appropriate diagnostic test? - creatinine kinase- dynamic ecg changes- lactate dehydrogenase- myoglobin levels- troponin i level