痰呈綠色,是否一定等於有細菌感染呢?495Please respect copyright.PENANA3wYzAolMgv495Please respect copyright.PENANAN2QebMXTKs
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(圖2)我們身體其中一種免疫細胞含有一種酶素名為Myeloperoxidase,它在結晶狀態下會呈綠色。495Please respect copyright.PENANASXmuT3rARd495Please respect copyright.PENANApR9XrfGAbA
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因此,痰呈綠色的其中一道原因就是免疫細胞在大開殺戒中,其綠色的酶素不經意間殘留在痰液裡頭。495Please respect copyright.PENANATwprqAcDGo
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而另一個痰呈綠色的可能性,就是病人不幸受到綠膿桿菌感染。495Please respect copyright.PENANAjPiNoR8i9c
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綠膿桿菌內含藍綠色的綠膿素(pyocyanin),綠膿素能侵害宿主的抗氧化功能,甚至能影響細胞製造能源的機制,非常惡毒。495Please respect copyright.PENANAdyuY07OJaU
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而這病菌則較常在慢性肺炎患者的痰液中找得到。495Please respect copyright.PENANAZ7KrnbdcAE
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(圖3)但是,就算痰呈黃色或綠色,亦不等於病人一定是受到細菌感染。495Please respect copyright.PENANAGCPqCOKVHE495Please respect copyright.PENANAkFEjXIV28d
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有研究找來相似年齡、性別、職業甚至是吸煙習慣的組別作對照,發現出現黃綠痰徵狀者無論給予抗生素與否,他們的康復速度及情況均無顯著分別。495Please respect copyright.PENANA1AQhusXixG
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因此,單純依憑痰的顏色是並不能夠作出正確的治療判斷。495Please respect copyright.PENANAOVHDmajOgX
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Ref1:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC1688091/?page=4495Please respect copyright.PENANAxV9kIG3yK2
Ref2:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2743764/495Please respect copyright.PENANACv2SGQ7L3a