LDL Cholesterol, Direct
Test Mnemonic
LDLDCT
CPT Codes
- 83721 - QTY (1)
LOINC ®
18262-6
Includes
- Direct LDL-Chol
- VLDL-Cholesterol if indicated
Performing Laboratory
Cleveland Clinic Laboratories
Specimen Requirements
| Volume | Type | Container | Collect Temperature | Transport Temperature | Special Instructions |
|---|---|---|---|---|---|
| 1 mL | Plasma | Lithium heparin PST (Lt. Green) | Refrigerated |
Alternate Specimen Requirements
| Volume | Type | Container | Collect Temperature | Transport Temperature | Special Instructions |
|---|---|---|---|---|---|
| 1 mL | Serum | SST (Gold) |
Minimum Specimen Requirements
| Volume | Type | Container | Collect Temperature | Transport Temperature | Special Instructions |
|---|---|---|---|---|---|
| 0.2 mL |
Stability
| Environmental Condition | Description |
|---|---|
| Ambient | 8 hours |
| Frozen | After separation from cells: 30 days |
| Refrigerated | After separation from cells: 7 days |
Days Performed
Sun - Sat
Turnaround Time
8 hours
Methodology
| Name | Description |
|---|---|
| Enzymatic |
Reference Range
| Direct LDL-Chol | |||||
|---|---|---|---|---|---|
| Sex | Age From | Age To | Type | Range | Range Unit |
| Years | 19 Years | Normal | < 110 | mg/dL | 20 Years | 99 Years | Normal | < 100 | mg/dL |
| VLDL-Cholesterol | |||||
| Sex | Age From | Age To | Type | Range | Range Unit |
| Years | 9 Years | Normal | <15 | mg/dL | 10 Years | 19 Years | Normal | <18 | mg/dL | 20 Years | 99 Years | Normal | <30 | mg/dL |
Clinical Info
Evaluation of hypercholesterolemia and/or coronary artery disease risk, monitoring of anti-hypercholesterolemia therapy.