直接低密度脂蛋白胆固醇

直接低密度胆固醇试验（direct LDL-C）检测血液中LDL胆固醇的数量，有时称为“有害的”胆固醇。通常，LDL-C的数量可用标准血脂的结果经计算得到。大多数情况下，这是对LDL-C很好的估算，但当甘油三酯增高时它就变得不够精确。直接检测LDL-C受甘油三酯的影响较小，并且在您没禁食时或当您的甘油三酯显著升高时（高于400 mg/dl）都可以采用该方法。

自肘静脉采集血液样本。

不需要任何实验前准备。

疾病: 心脏病

Live Healthier, Live Longer National Cholesterol Education Program
American Heart Association

S1
Thomas, Clayton L., Editor (1997). Taber’s Cyclopedic Medical Dictionary. F.A. Davis Company, Philadelphia, PA [18th Edition].

S2
Pagana, Kathleen D. & Pagana, Timothy J. (2001). Mosby’s Diagnostic and Laboratory Test Reference 5th Edition: Mosby, Inc., Saint Louis, MO.

S3
Paxton, A. (2002 July). One Year Later, Cholesterol Guidelines Sinking In [52 paragraphs]. CAP Today [On-line journal]. Available FTP: http://www.cap.org/captoday/archive/2002/cholesterol_guidelines_feature.html

S4
Paxton, A. (2002 July). One Option For A More Complete Profile [11 paragraphs]. CAP Today [On-line journal]. Available FTP: http://www.cap.org/captoday/archive/2002/cholesterol_guidelines_sidebar.html

S5
(2001 May). ATP III At-A-Glance: Quick Desk Reference [16 paragraphs]. U.S. Department Of Health And Human Services, Public Health Service, National Institutes of Health, National Heart, Lung, and Blood Institute [On-line information, NIH Publication No. 01-3305]. Available FTP: http://www.nhlbi.nih.gov/guidelines/cholesterol/atglance.htm

S6
(2002) Direct Measurement of LDL Cholesterol [1 paragraph]. The University of Iowa Department of Pathology, Laboratory Services Handbook, [On-line test information]. Available online

S7
Pagana, Kathleen D. & Pagana, Timothy J. (© 2007). Mosby’s Diagnostic and Laboratory Test Reference 8th Edition: Mosby, Inc., Saint Louis, MO. Pp. 602 – 605.

S8
Clarke, W. and Dufour, D. R., Editors (2006). Contemporary Practice in Clinical Chemistry, AACC Press, Washington, DC. Winter, W. and Harris, N. Chapter 21 Lipoprotein Disorders. Pp. 251–259.

S9
Wu, A. (2006). Tietz Clinical Guide to Laboratory Tests, Fourth Edition. Saunders Elsevier, St. Louis, Missouri. Pp. 684.