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St. Michael's Hospital Laboratory
Test Directory


Index:

LDL, DIRECT MEASURE

Order Name LDLD *part of Lipid Panel - see Test Notes
Athena Orderable:
LDL Direct-S [amgw]
Revision Date 09/04/2020
Test Name Methodology LOINC Code
LDL, DIRECT MEASURE
18262-6 
SPECIMEN REQUIREMENTS
Specimen Specimen Volume (min) Specimen Type Specimen Container Transport Environment
Preferred 1.0 mL (0.5 mL) Plasma Lithium Heparin PST (Light Green Top) Refrigerated
Alternate 1 1.0 mL (0.5 mL) Plasma Lithium Heparin (Dark Green Top / No-Gel) Refrigerated
Alternate 2 1.0 mL (0.5 mL) Serum Clot Activator SST Refrigerated
Alternate 3 1.0 mL (0.5 mL) Serum Clot Activator (Red Top, No-Gel) Refrigerated
GENERAL INFORMATION
Testing Schedule 24 hr 
Expected TAT 1 hr  
Notes WILL BE REFLEXED on a Lipid panel if TGL >400 mg/dL
**only order separately if requisition reads "directly measured LDL"
CPT Code(s) 8372159
Lab Section Laboratory - Chemistry