What is the diagnosis when a person's breathing and heartbeat have stopped?
a. brain dead
b. clinically dead
c. legally dead
d. nominally dead

During the first month of development, how many layers of cells make up the embryo? a. 1 b. 2 c. 3 d. 4

Max is a child with special needs. what is the best way his family can support max? a. place max in an institution that looks after such children b. limit his exposure to the outside world c. provide max with as normal a childhood as possible d. prevent max from mixing with other children with special needs

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