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Order Code LDLC LDL Cholesterol, Direct, Plasma or Serum

Specimen Requirements

Collection Container/Tube:

Preferred: Green-top (lithium heparin) gel tube.

Acceptable: Plain, red-top tube or a serum gel tube

Specimen Volume: 2 mL

Pediatric (minimum) volume: 0.5 mL in a green top (lithium heparin) MICROTAINER gel tube

Specimen Minimum Volume

0.5 mL

Transport Requirements


Specimen Type Temperature Time
Serum/plasma Ambient 1 day
  Refrigerated (preferred) 5 days
  Frozen OK


Performing Laboratory

Ridgeview Medical Center Laboratory

Day(s) Test Set Up

Monday through Sunday


Bichromatic endpoint

Useful For

Diagnosis and treatment of lipid disorders such as diabetes mellitus, atherosclerosis, and various liver and renal diseases.

Test Classification and CPT Coding


Reference Values

The National Cholesterol Education Program (NCEP) has set the following guidelines (reference values) for LDLC:

Optimal: <100 mg/dL

Near Optimal: 100-129 mg/dL

Borderline high: 130-159 mg/dL

High: 160-189 mg/dL

Very high: ≥190 mg/dL

*if Triglycerides are >400 on a Lipid Profile, the calculated LDL will reflex to this direct LDL (test code LDLC).