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HelpTest Code LDLD Low-Density Lipoprotein (LDL) Cholesterol, Beta-Quantification, Serum
Reporting Name
LDL Cholesterol (Beta-Quant), SUseful For
Evaluation of cardiovascular risk
Verification of estimated low-density lipoprotein cholesterol (LDL-C) in patients with hypertriglyceridemia or extremely low LDL-C
Diagnosis of familial hypobetalipoproteinemia and abetalipoproteinemia
Method Name
Ultracentrifugation/Selective Precipitation/Enzymatic Colorimetric
Performing Laboratory
Mayo Clinic Laboratories in Rochester
Specimen Type
SerumNecessary Information
Indicate patient's age and sex.
Specimen Required
Collection Container/Tube:
Preferred: Serum gel
Acceptable: Red top
Submission Container/Tube: Plastic vial
Specimen Volume: 3 mL
Collection Instructions: Centrifuge and aliquot serum into plastic vial. Send refrigerated.
Specimen Minimum Volume
2 mL
Specimen Stability Information
| Specimen Type | Temperature | Time | Special Container |
|---|---|---|---|
| Serum | Refrigerated (preferred) | 10 days | |
| Frozen | 60 days |
Reject Due To
| Gross hemolysis | Reject |
| Gross lipemia | OK |
| Gross icterus | Reject |
Reference Values
The National Lipid Association and the National Cholesterol Education Program (NCEP) have set the following guidelines for LDL-C in adults (ages 18 years and up):
Desirable: <100 mg/dL
Above desirable: 100-129 mg/dL
Borderline high: 130-159 mg/dL
High: 160-189 mg/dL
Very high: ≥190 mg/dL
The Expert Panel on Integrated Guidelines for Cardiovascular Health and Risk Reduction in Children and Adolescents has set the following guidelines for LDL-C in children and adolescents (ages 2-17 years):
Acceptable: <110 mg/dL
Borderline high: 110-129 mg/dL
High: ≥130 mg/dL
Day(s) Performed
Monday through Thursday; Saturday, Sunday
CPT Code Information
83701
LOINC Code Information
| Test ID | Test Order Name | Order LOINC Value |
|---|---|---|
| LDLD | LDL Cholesterol (Beta-Quant), S | 18261-8 |
| Result ID | Test Result Name | Result LOINC Value |
|---|---|---|
| LDLC | LDL Chol (Beta-Quantification), S | 18261-8 |
Test Classification
This test has been modified from the manufacturer's instructions. Its performance characteristics were determined by Mayo Clinic in a manner consistent with CLIA requirements. This test has not been cleared or approved by the US Food and Drug Administration.Report Available
2 to 4 daysForms
If not ordering electronically, complete, print, and send a Cardiovascular Test Request Form (T724) with the specimen.