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Test Code LAB102 Low-density lipoprotein (LDL) Cholesterol (direct)

Important Note

Collect following an overnight (12-14 hour) fast.

Patient must not consume any alcohol for 24 hours prior to specimen being drawn.

Test Name Alias

LDL Cholesterol (direct) Blood Level | 8787

Specimen Requirements

Submit only one of the following specimens:


Preferred
Specimen Type: Plasma
Container/Tube: Mint Green Top (Lithium Heparin Gel)
Volume: 4.5 mL
Minimum volume: 0.5 mL plasma
Collection Instructions: Centrifuge within 2 hours


Acceptable
Specimen Type: Serum
Container/Tube: Gold Top (Serum Separator-SST Gel)
Volume: 5 mL
Minimum volume: 0.5 mL serum
Collection Instructions: Allow specimen to clot for 30 minutes and centrifuge within 2 hours

Specimen Transport Temperature

Refrigerate

Special Instructions

Collect following an overnight (12-14 hour) fast. Patient must not consume any alcohol for 24 hours prior to specimen being drawn

Specimen Stability

Ambient: 12 hours

Refrigerate: 7 days

Frozen: aliquot plasma/serum for longer storage

Laboratory Retention: 72 hours

Test Frequency

Available daily, usual TAT 1 day.

Reference Range

The National Cholesterol Education Program has set the following guidelines (reference values) for LDLC:

 

Optimal <100 mg/dL
Near Optimal 100-129 mg/dL
Borderline 130-159 mg/dL
High coronary disease (CHD) risk 160-189 mg/dL
Very high CHD risk >189 mg/dL

 

Performing Department

Chemistry

Performing Department Laboratory Location

Spectrum Health Regional Laboratory (SHRL), Grand Rapids, MI
Spectrum Health Reed City Laboratory (SHRC), Reed City, MI

Methodology

Direct homogeneous Enzymatic Colorimetric

CPT

83721-LAB-LDL CHOL DIRECT

CDM Code

4058118

Interface Order Alias

10762

Mayo Access Code

SHO8787

LOINC

LDL (Direct): 18262-6

Trig (LDL): N/A

Reviewed Date

10/26/2016