Two days after admission for myocardial infarction and subsequent coronary angioplasty, a 65-year-old man becomes distressed and diaphoretic in the cardiac intensive care unit. Suddenly he is no longer responsive. Pulse oximetry does not show a tracing. He has a history of hypertension and depression. Prior to his admission, his medication included ramipril and aripiprazole. Examination shows no carotid pulse. An ECG is shown. After beginning chest compressions, which of the following is the most appropriate step in management of the patient?
AIntravenous procainamide
BCardiac catheterization
CIntravenous amiodarone
DIntravenous magnesium sulfate
EDefibrillation
A 57-year-old man with a known angina pectoris starts to experience a severe burning retrosternal pain that radiates to his left hand. After 2 consecutive doses of sublingual nitroglycerin taken 5 minutes apart, there is no improvement in his symptoms, and the patient calls an ambulance. Emergency medical service arrives within 10 minutes and begins evaluation and prehospital management. The vital signs include: blood pressure 85/50 mm Hg, heart rate 96/min, respiratory rate 19/min, temperature 37.1℃ (98.9℉), and SpO2 89% on ambient air. Oxygen supply and intravenous access are established. An ECG shows the findings in the given image. Which of the following is a part of a proper further prehospital management strategy for this patient?
AAdminister nitroglycerin and transport to percutaneous coronary intervention center
BPerform pre-hospital thrombolysis and transport to a percutaneous coronary intervention center
CAdminister aspirin 325 mg and transport to percutaneous coronary intervention center
DAdminister aspirin 81 mg and transport to a percutaneous coronary intervention center
EPerform pre-hospital thrombolysis and transport to emergency department irrespective of percutaneous coronary intervention center presence
A 66-year-old man comes to the emergency department because of a 1-day history of chest pain, palpitations, and dyspnea on exertion. He had a similar episode 3 days ago and was diagnosed with an inferior wall myocardial infarction. He was admitted and a percutaneous transluminal coronary angioplasty was successfully done that day. A fractional flow reserve test during the procedure showed complete resolution of the stenosis. Laboratory tests including serum glucose, lipids, and blood count were within normal limits. He was discharged the day after the procedure on a drug regimen of aspirin, simvastatin, and isosorbide dinitrate. At the time of discharge, he had no chest pain or dyspnea. Presently, his vitals are normal and ECG at rest shows new T-wave inversion. Which of the following is the most reliable test for rapidly establishing the diagnosis in this patient?
ACreatine kinase MB
BLactate dehydrogenase
CCopeptin
DAspartate aminotransferase
ECardiac troponin T
+ 7 more in the PDF
Browse all chapters