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Laboratory: Clinical Biochemistry  (AUTOMATED)
Test Name:
Test Code: LIPP
Clinical Information:
Alternate Name(s): Low Density Lipoprotein Cholesterol, Cholesterol-LDL

Description: Calculated LDL cholesterol is used for atherosclerotic risk assessment as well as in the diagnosis and monitoring of lipid and lipoprotein metabolic disorders.

As of September 18, 2023 LDL-C has been calculated using NIH equation:
Where TC is total cholesterol and TG is triglycerides.

Recommendations: Guideline for Adults (>18 yr):
2016 Canadian Cardiovascular Society Guidelines for the Management of Dyslipidemia for the Prevention of Cardiovascular Disease in the Adult.
Can J Cardiol. 2016 Nov;32(11):1263-1282. doi: 10.1016/j.cjca.2016.07.510. Epub 2016 Jul 25.
Guideline for Pediatric, Adolescents (<18 yr):
Expert Panel on Integrated Guidelines for Cardiovascular Health and Risk Reduction in Children and Adolescents Summary Report. NIH Publication No.12-7486A. October 2012.
Pediatrics. 2011 Dec;128 Suppl 5:S213-56. doi: 10.1542/peds.2009-2107C. Epub 2011 Nov 14.
Collection Devices:
Specimen Required:
Plasma: 2.0 mL
Pediatric Plasma: 1.0 mL

Specimen Stability: 
Ambient: 3 days
Refrigerated: 7 days
Frozen:  3 months
Plasma: 2.0 mL
Reference Values:
< 3.5 mmol/L
Stat or Routine
See Also:
More Information: