Re: [申覆] 醫學一 80題

看板medstudent (醫學生)作者gdc (夢在心中夜未眠..)時間14年前 (2011/08/03 15:15)推噓1(1推 0噓 1→)

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幫找 harrison 17th Infections with Fasciola hepatica and F. gigantica are worldwide zoonoses that are particularly endemic in sheep-raising countries. Human cases have been reported in South America, Europe, Africa, Australia, and the Far East. Recent estimates indicate a worldwide prevalence of 17 million cases. High endemicity has been reported in certain areas of Peru and Bolivia. In most endemic areas the predominant species is F. hepatica, but in Asia and Africa a varying degree of overlap with F. gigantica has been observed. Humans acquire fascioliasis by ingestion of metacercariae attached to certain aquatic plants, such as watercress. Infection may also be acquired by consumption of contaminated water or ingestion of food items washed with such water. Acquisition of human infection through consumption of freshly prepared raw liver containing immature flukes has been reported. Infection is initiated when metacercariae excyst, penetrate the gut wall, and travel through the peritoneal cavity to invade the liver capsule. Adult worms finally reach bile ducts, where they produce large operculated eggs, which are voided in bile through the gastrointestinal tract to the outside environment. The flukes' life cycle is completed in specific snails (the first intermediate host) and encystment on aquatic plants. ※ 引述《cecropin (乾坤一擲)》之銘言： : 80 牛羊肝吸蟲是草食性動物常見寄生蟲，請問下列敘述何者正確？ : (A)“halzoun＂是因生食感染牛羊肝吸蟲成蟲的動物肝臟而造成 : (B) 幼蟲經由膽管逆流而進入總膽管寄生，所以不會破壞肝組織 : (C) 牛羊肝吸蟲病以口服praziquantel為最佳治療 : (D) 人類係因食入動物肝臟中之囊狀幼蟲而感染 : 答：一律送分 : 佐證資料：Medical microbiology Murray第五版 : p918. : Humans may also become infected by ingesting the inadequately cooked flesh : of infected flesh of intermediate hosts (e.g., goats,sheep) containing : infective "larvae". In the latter instance, the infective larvae migrate : from the stomach to the nasopharyngeal tissues, where they develop into adult : pentastomids and produce the symptoms of the "halzoun syndrome". : A不是生食成蟲而是幼蟲才對 : C雖然可治療但反應不佳 : 所以應該一律給分 : PS.請有善心人士能寄出多幫幫在危險邊緣同學 -- ※ 發信站: 批踢踢實業坊(ptt.cc) ◆ From: 122.124.164.22