Colchicine Level
Test Mnemonic
COLCH
CPT Codes
- 80375 - QTY (1)
- G0480 - QTY (1)
Aliases
- Colchicine, Serum/Plasma
Performing Laboratory
National Med Serv Inc
FDA Category
Laboratory Developed Test
Specimen Requirements
| Volume | Type | Container | Collect Temperature | Transport Temperature | Special Instructions |
|---|---|---|---|---|---|
| 2 mL | Serum | No additive (Red) | Refrigerated | Do not use serum separator tubes. Remove serum from cells ASAP and refrigerate. |
Alternate Specimen Requirements
| Volume | Type | Container | Collect Temperature | Transport Temperature | Special Instructions |
|---|---|---|---|---|---|
| 2 mL | Plasma | EDTA (Lavender) | Refrigerated | Do not use plasma separator tubes. Remove plasma from cells ASAP and refrigerate. |
Minimum Specimen Requirements
| Volume | Type | Container | Collect Temperature | Transport Temperature | Special Instructions |
|---|---|---|---|---|---|
| 0.7 mL |
Stability
| Environmental Condition | Description |
|---|---|
| Refrigerated | 30 days |
| Frozen | 8 months |
| Ambient | 1 day |
Days Performed
Mon - Sun
Turnaround Time
9 - 10 days
Methodology
| Name | Description |
|---|---|
| High Performance Liquid Chromatography/Tandem Mass Spectrometry (LC/MS/MS) |
Reference Range
Special Info
This test is New York State approved. Specimens received at room temperature will be rejected. Polymer gel separation tubes are unacceptable.
Clinical Info
Reporting limit is 0.20 ng/mL. Purpose: Therapeutic drug monitoring. Following 1 mg p.o.: Peak plasma concentration was 5.5 ng/mL (range 4.0 to 7.6) at 1 hour.