Test Code 1HDL HDL Cholesterol
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]