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Test Code 1HDL HDL Cholesterol

Important Note

Patient should be fasting 12 hours.

Additional Codes

EPIC LAB4108

Clinical Significance

High density lipoproteins (HDL) are responsible for the reverse transport of cholesterol from the peripheral cells to the liver. In the liver, cholesterol is transformed to bile acids which are then excreted into the intestine via the biliary tract. 

 

Monitoring of HDL‑cholesterol in serum or plasma is of clinical relevance as the HDL‑cholesterol concentration is important in the assessment of atherosclerotic risk. Elevated HDL‑cholesterol concentrations protect against coronary heart disease (CHD), whereas reduced HDL‑cholesterol concentrations, particularly in conjunction with elevated triglycerides, increase cardiovascular risk.

 

Source: Roche Cobas HDLC4 Method Sheet Version 4.0 2024-08 

Methodology

Homogeneous enzymatic colorimetric test (Roche Cobas c503)

Sample Type

Preferred Sample Type
Light green top - Plasma

 

Acceptable Sample Type(s)
Dark green top - Plasma
Yellow top - Serum
Red top - Serum

Centrifuge: Yes

Specimen Minimum Volume

55 uL with insert cup

Specimen Stability

Temperature Time
Ambient (15-25°C) 72 hours
Refrigerated (2-8°C) (store) 7 days
Frozen (-15 to -25°C) 3 months*
Frozen (-70°C) 18 months*

Separate plasma or serum from cells within 2 hours.

*Freeze only once!

Reference Ranges

Normal Range
>60 mg/dL

 

Technical Range
4 - 150 mg/dL

 

Rejection Criteria

Hemolysis Index >1,200
Icterus Index >60
Lipemia N/A*

*Do not ultracentrifuge!

Availability

Performed STAT
24/7 Yes

 

Performing Laboratory

MultiCare Yakima Memorial Hospital Laboratory

Lab Department

Chemistry

CPT Code

83718

LOINC

2085-9 Cholesterol in HDL [Mass/Vol]