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Test Code SDLDL Small Dense Low Density Lipoprotein Cholesterol, Serum


Specimen Required


Patient Preparation: Fasting overnight (8-12 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.


Secondary ID

619974

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

Specimen Type

Serum

Specimen Minimum Volume

0.5 mL

Specimen Stability Information

Specimen Type Temperature Time Special Container
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.

Interpretation

Results of 50 mg/dL or greater indicate increased risk of incident coronary heart disease (CHD) (myocardial infarction, fatal CHD, or cardiac procedure).

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

Report Available

1 to 3 days

Specimen Retention Time

7 days

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.