Jacob’s four-month-old infant is crying continuously. While Jacob’s wife suggests that he pick up the baby, Jacob’s mother thinks that picking up the baby each time she cries is bad for the baby. Why is Jacob’s wife right? A. Babies sleep better when carried. B. Babies learn to cry whenever they want someone to hold them. C. Babies may choke if crying while lying on their back. D. Babies develop a sense of trust that someone is there to provide care.

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