Pseudocholinesterase, Total
Test Mnemonic
PCHE
CPT Codes
- 82480 - QTY (1)
LOINC ®
2098-2
Aliases
- Butyrylcholinesterase
- Cholinesterase (Pseudo), Total
- Serum Cholinesterase (Pseudochol)
Includes
- Pseudocholinesterase, Total
Performing Laboratory
ARUP
Specimen Requirements
| Volume | Type | Container | Collect Temperature | Transport Temperature | Special Instructions |
|---|---|---|---|---|---|
| 0.5 mL | Serum | SST (Gold) | Refrigerated | Specimen must be drawn prior to surgery or more than two days following surgery. Allow specimen to clot completely at room temperature. Separate serum from cells within 2 hours of collection and transfer to standard aliquot tube. |
Alternate Specimen Requirements
| Volume | Type | Container | Collect Temperature | Transport Temperature | Special Instructions |
|---|---|---|---|---|---|
| 0.5 mL | Plasma | EDTA (Lavender) | Refrigerated | Specimen must be drawn prior to surgery or more than two days following surgery. Separate plasma from cells within 2 hours of collection and transfer to standard aliquot tube. |
Minimum Specimen Requirements
| Volume | Type | Container | Collect Temperature | Transport Temperature | Special Instructions |
|---|---|---|---|---|---|
| 0.1 mL |
Stability
| Environmental Condition | Description |
|---|---|
| Refrigerated | 1 week |
| Frozen | 3 months |
| Ambient | 4 hours |
Days Performed
Mon - Fri
Turnaround Time
2 - 5 days
Methodology
| Name | Description |
|---|---|
| Quantitative Enzymatic |
Reference Range
| Pseudocholinesterase | |||||
|---|---|---|---|---|---|
| Sex | Age From | Age To | Type | Range | Range Unit |
| Reference Interval: 2,900-7,100 U/L |
Special Info
Specimen must be drawn prior to surgery or more than two days following surgery. Unspun or hemolyzed specimens will be rejected. This test is New York state approved.
Clinical Info
This is an acceptable test for determining acute exposure to organophosphate insecticides.