3 hours before, a 68-year-old male patient got a searing chest pain radiating to the neck and left forearm, escalating dyspnea. Nitroglycerin failed to relieve pain but somewhat reduced dyspnea. Objectively: there is crimson cyanosis of face. Respiratory rate is 28/min. The patient has vesicular breathing with isolated sibilant rales. Heart sounds are muffled, with a gallop rhythm. Ps - 100/min, AP - 100/65 mmHg. ECG shows negative T-wave in V2-V6 leads. What drug can reduce the hearts need for oxygen without aggravating the disease?StreptokinaseAminophyllineCorinfarAtenololIsosorbide dinitrate

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