Malcolm is studying alone, late at night when he hears a loud noise. his heartbeat increases and his breathing becomes shallow. he wonders if a burglar has entered the house and decides to investigate. when he gets downstairs he discovers his cat has knocked over a plant stand. his body begins to relax and return to normal. what part of his nervous system is responsible for returning malcolm to a normal state?

10alcohol affects the brain, reducing a person's ability to think clearly. the driver may not and actually feel he/she is performing better than they actually are.

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

Never seek shelter from a tornado: a. in a mobile home b. in a car or truck c. in a room with windows d. in any of the above