痰呈綠色,是否一定等於有細菌感染呢?451Please respect copyright.PENANAfhnY3CgISM451Please respect copyright.PENANAB8nWjTSZr5
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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。451Please respect copyright.PENANAHmlHlaUMrV451Please respect copyright.PENANA9L3reGirzG
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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。451Please respect copyright.PENANAOnRbpHolcx
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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。451Please respect copyright.PENANAfiMXCMjvVT
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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。451Please respect copyright.PENANAe2b4edPe5O
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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。451Please respect copyright.PENANAnB8r0vw0fp
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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。451Please respect copyright.PENANA3wOuFBF3KZ451Please respect copyright.PENANAIAP8eNh4kE
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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。451Please respect copyright.PENANAOmbMyaz9TG
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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。451Please respect copyright.PENANAY3pa0bsSoF
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Ref1:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC1688091/?page=4451Please respect copyright.PENANA3My7vNGQqj
Ref2:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2743764/451Please respect copyright.PENANA0i5gOV9tFP