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A 57-year-old patient complains of dyspnea at rest. The patient presents with orthopnea, acrocyanosis, bulging cervical veins. On percussion: dull sound over the lower lung segments. On auscultation: no respiratory sounds. Heart rate is 92/min. Right-sided cardiac dilatation is observed. The liver is +7 cm. Shins are swollen. Pleural effusion is suspected. What indicator would confirm the presence of transudate in this case?a.Positive Rivalta's testb.Specific gravity exceeding 1015c.Total protein content in the pleural fluid exceeding 30 g/Ld.Presence of atypical cellse.Total protein content in the pleural fluid below 25 g/L
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