A 19-year-old student has been hospitalized on an emergency basis because of severe dyspnea, pain in the left side of chest. The patient got sick 3 days ago. Objectively: body temperature 38,8°C. Bh - 42/min., hypopnoea. There is dullness of percussion sound on the right of the scapula middle, breathing sounds cannot be auscultated. The left border of heart is displaced outwards by 3 cm. Embryocardia is preent, HR -110/min. The right hypochondrium is painful on palpation. What are the immediate treatment measures in this situation?