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HelpOrder Code SDLDL Small Dense Low Density Lipoprotein Cholesterol, Serum
Specimen Required
Patient Preparation:
Fasting: 8 hours; required
Supplies: Sarstedt Aliquot Tube, 5 mL (T914)
Collection Container/Tube:
Preferred: Serum gel
Acceptable: Red top
Submission Container/Tube: Plastic vial
Specimen Volume: 1 mL
Collection Instructions:
1. Centrifuge and aliquot serum into a plastic vial.
2. Send frozen.
Useful For
Aiding in risk management of lipoprotein disorders associated with cardiovascular disease when used in conjunction with other lipid measurements and clinical evaluation
Method Name
Enzymatic Colorimetric
Reporting Name
Small Dense LDL Cholesterol, SSpecimen Type
SerumSpecimen Minimum Volume
0.5 mL
Specimen Stability Information
| Specimen Type | Temperature | Time |
|---|---|---|
| Serum | Frozen (preferred) | 30 days |
| Refrigerated | 72 hours | |
| Ambient | 8 hours |
Reject Due To
| Gross hemolysis | Reject |
| Gross lipemia | Reject |
| Gross icterus | Reject |
Reference Values
≥18 years: <50 mg/dL
Reference values have not been established for patients who are younger than 18 years.
Method Description
This test system is a multi-step method measured on automated chemistry analyzers. The assay consists of two steps and is based on the technique of using well-characterized surfactants and enzymes that selectively react with certain groups of lipoproteins.(Package insert: Small dense LDL Seiken. Roche Diagnostics; V 2.0, 11/2021)
Day(s) Performed
Monday through Friday
Performing Laboratory
Mayo Clinic Laboratories in Rochester
CPT Code Information
83722
LOINC Code Information
| Test ID | Test Order Name | Order LOINC Value |
|---|---|---|
| SDLDL | Small Dense LDL Cholesterol, S | 90364-1 |
| Result ID | Test Result Name | Result LOINC Value |
|---|---|---|
| SDLDL | Small Dense LDL Cholesterol, S | 90364-1 |
Forms
If not ordering electronically, complete, print, and send a Cardiovascular Test Request (T724) with the specimen.