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肌酐


又名: 肌酐; 血肌酐;血清肌酐; 尿肌酐
正式名称: 肌酐

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为何检测?

检测肾脏功能是否正常以及监测肾脏疾病的治疗效果。

何时检测?

通常作为综合或基本代谢状况评价的一个指标;怀疑患者患有肾功能异常或患有可能影响和/或加速肾功损伤的急、慢性疾病时;监测肾脏疾病治疗效果或用于某些药物引起的肾损伤监测。

何种样本?

自肘静脉采集血液样本或必要时需24h尿液标本。

是否需要作试验前准备?

不需要。

检测样本

检测什么?

本试验测定血液和/或尿液中的肌酐含量。肌酐是肌肉中肌酸的分解代谢产物。肌酸是肌肉收缩能量供给循环中一部分,并且和肌酐一样,在体内相对恒定。几乎所有肌酐都由肾脏排泄,所以血中肌酐水平可较好的反映肾脏工作状态。血液中肌酐量的多少主要由个体的体表面积大小和肌肉量的多少所决定。因此,男性肌酐水平可轻度高于女性,成年人要轻度高于儿童。

测试样本如何采集?

自肘静脉采集血液样本。除了采集肘静脉血外,也可能要求收集24h尿液标本。正常的24h尿标本留取方法为,早晨起床排尿后开始计时,收集全部尿液直至第2天的相同时间为止。

是否需要进行任何试验前准备以保证样本的质量?

不需要任何实验前准备。

试验

常见问题

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参考文献

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注意:本文是在此处引用的参考文献和医学检验项目在线介绍编辑审核委员会全体成员的经验和研究结果的基础上总结而成。本文由编辑委员会定期审核、更新。任何新引用的文献都会添加到列表中,并且会与原有的参考文献区分开。

Sources Used in Current Review

(Update: 10/22/2007) MedlinePlus Medical Encyclopedia. Creatinine, Serum. Available online at http://www.nlm.nih.gov/medlineplus/ency/article/003475.htm. Accessed November 2008.

(Update: 10/22/2007) MedlinePlus Medical Encyclopedia. Creatinine, Urine. Available online at http://www.nlm.nih.gov/medlineplus/ency/article/003610.htm. Accessed November 2008.

(Update: 9/4/2007) MedlinePlus Medical Encyclopedia. Creatinine clearance. Available online at http://www.nlm.nih.gov/medlineplus/ency/article/003611.htm. Accessed November 2008.

Clarke, W. and Dufour, D. R., Editors (2006). Contemporary Practice in Clinical Chemistry, AACC Press, Washington, DC. Pp. 311-312.

National Kidney Foundation. Chronic Kidney Disease. Available online at http://www.kidney.org/kidneyDisease/ckd/index.cfm#whatare through http://www.kidney.org. Accessed January 2009.

Pagana K, Pagana T. Mosby's Manual of Diagnostic and Laboratory Tests. 3rd Edition, St. Louis: Mosby Elsevier; 2006 Pp. 206-209.

Sources Used in Previous Reviews

Thomas, Clayton L., Editor (1997). Taber’s Cyclopedic Medical Dictionary. F.A. Davis Company, Philadelphia, PA [18th Edition].

Pagana, Kathleen D. & Pagana, Timothy J. (2001). Mosby’s Diagnostic and Laboratory Test Reference 5th Edition: Mosby, Inc., Saint Louis, MO.

(2002 March). Medical Tests of Kidney Function. National Kidney and Urologic Diseases Information Clearinghouse, NIH Publication No. 02–4623 [On-line information]. Available online at http://kidney.niddk.nih.gov/kudiseases/pubs/kidneytests/index.htm through http://kidney.niddk.nih.gov.

Esson, M. and Schrier, R. (2002). Diagnosis and Treatment of Acute Tubular Necrosis. Ann Intern Med 2002;137:744-752 [On-line journal]. PDF available for download at http://www.annals.org/cgi/reprint/137/9/744.pdf through http://www.annals.org.

Agha, Irfan (2004 February 11, Updated). Creatinine – serum. MedlinePlus Medical Encyclopedia [On-line information]. Available online at http://www.nlm.nih.gov/medlineplus/ency/article/003475.htm.

Agha, Irfan (2004 February 11, Updated). Creatinine – urine. MedlinePlus Medical Encyclopedia [On-line information]. Available online at http://www.nlm.nih.gov/medlineplus/ency/article/003610.htm.

Agha, Irfan (2004 February 11, Updated). Creatinine clearance. MedlinePlus Medical Encyclopedia [On-line information]. Available online at http://www.nlm.nih.gov/medlineplus/ency/article/003611.htm.

Agha, Irfan (2003 August 7, Updated). BUN. MedlinePlus Medical Encyclopedia [On-line information]. Available online at http://www.nlm.nih.gov/medlineplus/ency/article/003474.htm.

Agrawal, M. and Swartz, R. (2000 April 1). Acute Renal Failure. American Family Physician [On-line journal]. Available online at http://www.aafp.org/afp/20000401/2077.html through http://www.aafp.org.

Nissl, J. (2004 September 20, Updated). Creatinine and Creatinine Clearance WebMD [On-line information]. Available online at http://my.webmd.com/hw/kidney_failure/hw4322.asp through http://my.webmd.com.

Physician’s Reference Laboratory: Kidney Function Panel. Available online at http://www.prlnet.com/Kidney.htm through http://www.prlnet.com.