31. 治療細菌性肺炎前進行痰液培養,所收集到的「痰液檢體」符合下列哪一描述條件時,
為較適當的檢體?( 單位為 cells per low-power field )
(A) >25 neutrophils and>10 squamous epithelial cells
(B) >25 neutrophils and<10 squamous epithelial cells
(C) <25 neutrophils and>10 squamous epithelial cells
(D) <25 neutrophils and<10 squamous epithelial cells