LDL Cholesterol, Direct

Test Code



Testing performed with serum on Beckman Coulter DxC 700 AU analyzer.

Test Utility

Used in the diagnosis and management of coronary atherosclerosis.

Specimen Storage and Stability

Use fresh sample for analysis when possible. If analysis is delayed specimens are stable for 5 days when stored at 2-8C. If specimens need to be stored for more than 5 days, they may be preserved at less than -70C for up to 3 months. Samples should only be frozen once.

Specimen Collection and Preparation

Serum samples are recommended, 3.0mL Gold Top or Tiger SST. Separate serum from the red blood cells as soon as possible (within 3 hours). Plasma using anticoagulants such as citrate oxalate are not recommended.

Specimen Rejection

  • Improperly labeled

  • Specimen grossly

  • Hemolyzed uncentrifuged

Reference Ranges

75 - 193mg/dL


Monday - Saturday, 16 hours a day.

Result available after getting the specimen in 5 hours.

STAT results available within 2 hours of receipt in the Laboratory.

*NOTE: All Specimen Refrigerated (2-8°C) for 7 days only.


Vibra Health Laboratory

Phone: (248) 846-0663


1307 Allen Dr, Suite A, Troy, MI 48083