Laboratory Services

LDL-Cholesterol, Measured

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Updated Test Information:

Test Description
LDL-Cholesterol, Measured
Synonym(s)
Low density lipoprotein, Direct LDL, LDLC, LDLC Direct
Test ID
LDLD
General Information
For the direct determination of LDL cholesterol in nonfasting patients or in patients whose fasting triglycerides are >400 mg/dL, where the estimation of LDL by calculation may not be possible or may lead to inaccuracies. 
Specimen Type
Serum
Alternate Specimen Type
Red, Li-heparin plasma, K2EDTA
Specimen Requirements
SST
Specimen Collection / Processing Instructions
SST - Separate serum or plasma from cells within 45 minutes of collection.
Additional Processing Details
Separate serum or plasma from cells within 45 minutes of collection.
Stability
7 days at 2-8°C
12 months at -20°C
Unacceptable Specimen Conditions
Citrate plasma samples
Methodology
Enzymatic Colorimetric
Estimated TAT
0-2 days
Testing Schedule
Monday-Saturday
CPT Code(s)
83721
Minimum Sample Volume
1 mL
Pediatric Min. Volume (if applicable)
500 uL
Reference Range
Adult levels:
Optimal: <100 mg/dL
Near/Above optimal: 100-129 mg/dL
Borderline High: 130-159 mg/dL
High: 160-189 mg/dL
Very High: ≥190 mg/dL
Performing Lab
Incyte Diagnostics
LOINC Code(s)
2089-1