Saem Practice 2016 |546 Questions| With Correct Answers.

Of the following choices, which diagnosis is most likely in a 53-year old cancer patient with chest pain, dyspnea, and the EKG shown in the Figure? A. pericarditis from metastatic disease B. third degree heart block C. anterolateral myocardial ischemia D. infectious myocarditis E. pulmonary embolism {Ans: E. pulmonary embolism The answer is E. The EKG's S1Q3T3 pattern (S in lead I, Q and inverted T in lead III), while not pathognomonic, is suggestive of PE as a cause of this patient's symptoms.}All of the following are true regarding chest compressions in the infant EXCEPT: A. Chest compressions should be initiated whenever an infant's heart rate is less than 60 bpm. B. An appropriate position for performing chest compressions is to encircle the chest with both hands and place the thumbs side by side on the sternum. C. Compressions should be performed at a rate of 90 per minute. D. Chest compressions should be accompanied by a ventilatory rate of 30 per minute. E. Correct depth of compressions is one-third the anteroposterior diameter of the chest. {Ans: A. Chest compressions should be initiated whenever an infant's heart rate is less than 60 bpm.}Regarding the role of malignancy in