[申覆] 醫學(二) 14

看板medstudent (醫學生)作者 (star7799)時間15年前 (2010/08/03 22:28), 編輯推噓7(7013)
留言20則, 12人參與, 最新討論串1/1
下列關於一氧化碳中毒的敘述, 何者錯誤? 答案是A (A) 中毒的症狀為頭痛, 噁心, 且因缺氧故刺激化學接受器(chemoreceptor) 使呼吸加快加深 想請問大家 A 為什麼錯? 謝謝 美國CDC上有說: The symptoms and signs of carbon monoxide poisoning are variable and nonspecific. The most common symptoms of CO poisoning are headache, dizziness, weakness, nausea, vomiting, chest pain, and altered mental status. The clinical presentation of CO poisoning is the result of its underlying systemic toxicity. Its effects are caused not only by impaired oxygen delivery but also by disrupting oxygen utilization and respiration at the cellular level, particularly in high-oxygen demand organs (i.e., heart and brain). Symptoms of severe CO poisoning include malaise, shortness of breath, headache, nausea, chest pain, irritability, ataxia, altered mental status, other neurologic symptoms, loss of consciousness, coma, and death; signs include tachycardia, tachypnea, hypotension, various neurologic findings including impaired memory, cognitive and sensory disturbances; metabolic acidosis, arrhythmias, myocardial ischemia or infarction, and noncardiogenic pulmonary edema, although any organ system might be involved. 嚴重的話會tachypnea但不知道為什麼?沒說生理的部分 -- ※ 發信站: 批踢踢實業坊(ptt.cc) ◆ From: 59.126.27.226

08/03 22:29, , 1F
我猜應該是加快的話會變淺??但還要查證
08/03 22:29, 1F

08/03 22:31, , 2F
化學受器應該是接受H+ 之類的東西吧...氧分壓好像不算
08/03 22:31, 2F

08/03 22:35, , 3F
會有前面的症狀 但是不會有後面的接受器之刺激
08/03 22:35, 3F

08/03 22:38, , 4F
我是想到燒炭自殺的人好像不會那樣呼吸加快加深XDD
08/03 22:38, 4F

08/03 22:45, , 5F
可是一氧化碳中毒 氧分壓有變嗎?
08/03 22:45, 5F

08/03 22:46, , 6F
Chemoreceptors in the carotid bodies and medulla are
08/03 22:46, 6F

08/03 22:46, , 7F
activated by hypoxemia, acute hypercapnia, and acide
08/03 22:46, 7F

08/03 22:47, , 8F
mia..
08/03 22:47, 8F

08/03 22:48, , 9F
一氧化碳中毒應該算hypoxemia吧
08/03 22:48, 9F

08/03 22:54, , 10F
印象中chemoreceptor是偵測氧分壓@@
08/03 22:54, 10F

08/03 22:57, , 11F
這題我也寫錯..該不會是快而深出了問題xXD
08/03 22:57, 11F

08/03 23:08, , 12F
我覺得有可能是快而淺耶.....
08/03 23:08, 12F

08/03 23:09, , 13F
燒炭會很想睡覺 應該不會加快XD 不過原理就不知道==
08/03 23:09, 13F

08/03 23:11, , 14F
CO中毒氧分壓不會變吧
08/03 23:11, 14F

08/03 23:14, , 15F
氧分壓不會變啊
08/03 23:14, 15F

08/03 23:35, , 16F
我是覺得一氧化碳中毒不會頭痛噁心所以就選了@@
08/03 23:35, 16F

08/04 00:01, , 17F
因為其他都對所以選A =w=
08/04 00:01, 17F
※ 編輯: star7799 來自: 59.126.27.226 (08/04 00:06)

08/04 13:54, , 18F
雖然我選A,但是我覺得題目單講"缺氧"太籠統.因缺氧造成體
08/04 13:54, 18F

08/04 13:55, , 19F
內H+上升再去刺激化學受器應該也可以吧?
08/04 13:55, 19F

08/04 13:56, , 20F
所以我也猜是"又快又深"錯了...不過不知道錯在哪= ="
08/04 13:56, 20F
文章代碼(AID): #1CM2UTHm (medstudent)
文章代碼(AID): #1CM2UTHm (medstudent)