痰呈綠色,是否一定等於有細菌感染呢?534Please respect copyright.PENANAPLkcmn0kmM534Please respect copyright.PENANAO3ru84W9T9
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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。534Please respect copyright.PENANA4cwhzbqvun534Please respect copyright.PENANA6HdIHNAhLZ
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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。534Please respect copyright.PENANAmiWdYK9rpz
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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。534Please respect copyright.PENANAeSLVkie0iW
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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。534Please respect copyright.PENANAWT5m0WtiL1
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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。534Please respect copyright.PENANAB2ME0nF9Y2
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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。534Please respect copyright.PENANAFANmgddDv8534Please respect copyright.PENANAsgwkKmW2Ow
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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。534Please respect copyright.PENANANtXjlrC8ua
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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。534Please respect copyright.PENANAaTuTYa0k7w
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Ref1:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC1688091/?page=4534Please respect copyright.PENANAKnGKl2EIIp
Ref2:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2743764/534Please respect copyright.PENANA5l6oNyEV4H