A 65-year-old woman was diagnosed with stage IB righ t lung cancer. Sheunderwent rightlower lobectomy withlymph node dissection for the cancer. Shedeveloped a milky white pleural effusion of 860 mL, which was drained afterstarting meals on the first postoperative day.

Which pleural effusion test should be performed for a definitive diagnosis?

a. Protein

b. Bacteria

c. Triglyceride

d. Malignant cells

e. White blood cells

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問題解説・システム開発 : 内科医 米澤昌紘(れく)