Clearance (medicine)

（重定向自Renal clearance）

Diagram showing the basic physiologic mechanisms of the kidney

In medicine, the clearance is a pharmacokinetic measurement of the volume of plasma that is completely cleared off of a substance per unit time. The usual units are mL/min.

The total body clearance will be equal to the renal clearance + hepatic clearance + lung clearance. Although for many drugs the clearance is simply considered as the renal excretion ability, that is, the rate at which waste substances are cleared from the blood by the kidney. In these cases clearance is almost synonymous with renal clearance or renal plasma clearance. Each substance has a specific clearance that depends on its filtration characteristics. Clearance is a function of glomerular filtration, secretion from the peritubular capillaries to the nephron, and re-absorption from the nephron back to the peritubular capillaries. Clearance is variable in zero-order kinetics because a constant amount of the drug is eliminated per unit time, but it is constant in first-order kinetics, because the amount of drug eliminated per unit time changes with the concentration of drug in the blood. The concept of clearance was described by Thomas Addis, a graduate of the University of Edinburgh Medical School.

词汇	Renal clearance
分类	英语词汇英语翻译词典
释义	Renal clearance 英语百科 Clearance (medicine) （重定向自Renal clearance） In medicine, the clearance is a pharmacokinetic measurement of the volume of plasma that is completely cleared off of a substance per unit time. The usual units are mL/min. The total body clearance will be equal to the renal clearance + hepatic clearance + lung clearance. Although for many drugs the clearance is simply considered as the renal excretion ability, that is, the rate at which waste substances are cleared from the blood by the kidney. In these cases clearance is almost synonymous with renal clearance or renal plasma clearance. Each substance has a specific clearance that depends on its filtration characteristics. Clearance is a function of glomerular filtration, secretion from the peritubular capillaries to the nephron, and re-absorption from the nephron back to the peritubular capillaries. Clearance is variable in zero-order kinetics because a constant amount of the drug is eliminated per unit time, but it is constant in first-order kinetics, because the amount of drug eliminated per unit time changes with the concentration of drug in the blood. The concept of clearance was described by Thomas Addis, a graduate of the University of Edinburgh Medical School.
随便看	put sth to sb put sth to sleep put sth to the proof put sth to the test put sth to the torch put sth. to the touch put sth to the touch put sth to use put sth to vote put sth towards sth put sth under the microscope put sth up put stitches in puts to Puts to bed put stock in put stock in sth puts to death puts together put store by put store on puts to rest puts to shame puts to use puts towards 恋爱频率歌词表达什么情感是什么意思情感类文案标题是什么意思古诗情感文案句子摘抄简短是什么意思演员这首歌表达什么情感的歌是什么意思情感语录文字生日是什么意思情感散文摘抄作文初中是什么意思表达情感的青春舞曲是什么意思小吟情感文案短句子是什么意思分手情感对白语录是什么意思蓝田日暖玉生烟表达的情感是什么意思情书叙述结构是什么意思东山表达了什么情感基调是什么意思保洁情感语录大全短句子是什么意思街拍情感句子是什么意思情感散文作文中考赏析题是什么意思圣诞节送男朋友什么礼物好，重要的是挺靠谱父亲节送什么礼物最好，有趣精选清单朋友结婚送什么礼物最好，重要的是值得送教师节送女老师什么礼物好，这些有创意的都可以最有心意的生日礼物，分享几款最想收到的送男友什么生日礼物好，细数几款很实用的好朋友结婚送什么礼物好，分享一波值得入手的最有意义的生日礼物，盘点10款值得入手的男友过生日送什么礼物，这些有意义的都可以教师节送什么礼物给老师，特别礼物一览送给男友的生日礼物，来几款特实用的给母亲买什么礼物好，很实用礼物集合圣诞节送什么礼物好，送什么都要很有创意哦送情人什么生日礼物，这些无法抗拒的都可以送父亲什么礼物排行榜，重要的是走心 brief contact psychotherapy Brief Psychiatric Rating Scale, BPRS brief psychoanalytic psychotherapy brief psychotherapy brief strategicp sychotherapy brief therapy bright adaptation brightness brightness constancy brightness contrast brightness perception brilliance threshold British Ability Scale, BAS British Psychological Society, BPS British school of psychoanalysis psychotherapy 如何选择一款安全可靠的电动车防盗锁如何选择合适的电动车后卡钳西安网约车平台大比拼！哪个平台更受欢迎？透明车衣选购指南：哪个品牌更值得选择如何选择适合摆摊用的露营车品牌晕车后怎样选择合适的食物来缓解不适香格里拉自驾游，选择什么车型最合适？ 2024年夏季大促销：如何抢购心仪的购物车？ 2024年买小型车，这些平价好牌值得考虑高考后何时开始学车合适 2024年最受欢迎的平价电动车推荐 25万元买什么车？推荐5款平价好物！高铁动车段岗位选择指南，从工资、福利到职业发展的全方位评估汽车低音炮选择指南：如何选择适合你的汽车低音炮川西自驾游路线推荐及适合的车型选择