A 45-year-old man was brought to clinic with complaints of the pain that started suddenly in the left chest part and epigastric area, shortness of breath, nausea, one-time vomiting. The acute pain started after weight-lifting. On physical exam: shallow breathing, RR - 38/min, left chest part is behind during respiration, by percussion - tympanitic sound, respiration is not ausculated. Ps - 110 bpm, of weak filling. BP- 100/60 mm Hg, insignificant displacement of heart to the right, sounds are dull. What examination is the most expedient to do first?BronchoscopyElectrocardiographyRoentgenographyEsophagogastroscopyUltrasound of the abdominal cavity

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