翻訳と辞書 Words near each other ・ Shur-e Qarah Kand ・ Shur-e Sofla ・ Shur-Kishlak ・ Shura ・ Shura (disambiguation) ・ Shura (film) ・ Shura (musician) ・ Shura (rural locality) ・ Shura Cherkassky ・ Shura Council ・ Shura Council of Benghazi Revolutionaries ・ Shura Council of Mujahideen in Derna ・ Shunt (electrical) ・ Shunt (medical) ・ Shunt (theatre company) ・ Shunt equation ・ Shunt fault ・ Shunt generator ・ Shunt impedance ・ Shunt nephritis ・ Shunt regulated push-pull amplifier ・ Shunta Gotoh ・ Shunta Nagai ・ Shunta Wakamatsu ・ Shuntaro Hida ・ Shuntarō ・ Shuntarō Itō ・ Shuntarō Tanikawa ・ ShuntCheck ・ Shunte District Dictionary Lists mini英和辞書 mini和英辞書 Webster 1913 Latin-English FOLDOC Wikipedia English ウィキペディア

翻訳と辞書　辞書検索 [ 開発暫定版 ] スポンサード リンク Shunt equation ： ウィキペディア英語版 Shunt equation The Shunt equation quantifies the extent that venous blood bypasses oxygenation in the capillaries of the lung. Shunt and dead space are terms used to describe conditions where either blood flow or ventilation does not meet the other in the lung as it should for gas exchange to take place. They can also be used to describe areas or effects where blood flow and ventilation are not properly matched though both may be present to varying extents. Some refer to shunt-effect or dead space-effect to designate the ventilation/perfusion mismatch states that are less extreme than absolute shunt or dead space. The following equation relates the percentage of blood flow that is not exposed to inhaled gas, called the shunt fraction $Q\_s/Q\_t$, to the content of oxygen in venous, arterial, and pulmonary capillary blood. :$Q\_s/Q\_t\; =\; (Cc\_\; -\; Ca\_)\; /\; (Cc\_\; -\; Cv\_)$ 〔Respiratory Physiology: The Essentials, J. West, 2005, 7th ed, Page 169〕 == Derivation == The blood entering the pulmonary system will have oxygen flux $Q\_t\; \backslash cdot\; Cv\_$, where $Cv\_$ is oxygen content of the venous blood and $Q\_t$ is the total cardiac output. Similarly, the blood emerging from the pulmonary system will have oxygen flux $Q\_t\; \backslash cdot\; Ca\_$, where $Ca\_$ is oxygen content of the arterial blood. This will be made up of blood that bypassed the lungs ($Q\_s$) and that which went through the pulmonary capillaries ($Q\_c$). We can express this as $Q\_t\; =\; Q\_s\; +\; Q\_c$. We can solve for $Q\_c$: $Q\_c\; =\; Q\_t\; -\; Q\_s$. If we add the oxygen content of Qs to Qc we get the oxygen content of Qt: $Q\_t\; \backslash cdot\; Ca\_\; =\; Q\_s\; \backslash cdot\; Cv\_\; +\; (Q\_t\; -\; Q\_s)\; \backslash cdot\; Cc\_$ Substitute Qc as above, CcO2 is content of capillary oxygen blood. $Q\_t\; \backslash cdot\; Ca\_\; =\; Qs\; \backslash cdot\; Cv\_\; +\; Q\_t\; \backslash cdot\; Cc\_\; -\; Qs\; \backslash cdot\; Cc\_$ Multiply out the brackets. $Q\_s\; \backslash cdot\; Cc\_\; -\; Qs\; \backslash cdot\; Cv\_\; =\; Q\_t\; \backslash cdot\; Cc\_\; -\; Qt\; \backslash cdot\; Ca\_$ Get the Qs terms and the Qt terms on the same side. $Q\_s\; \backslash cdot\; (Cc\_\; -\; Cv\_)\; =\; Q\_t\; \backslash cdot\; (Cc\_\; -\; Ca\_)$ Factor out the Q terms. $\backslash dfrac\; =\; \backslash dfrac\; \}\; \}$ Divide by Qt and by (CcO2 - CvO2). 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Shunt equation」の詳細全文を読む スポンサード リンク 翻訳と辞書 : 翻訳のためのインターネットリソース Copyright(C) kotoba.ne.jp 1997-2016. All Rights Reserved.