Pseudocholinesterase, Total
0020167
Ordering Recommendation
Acceptable test for determining acute exposure to organophosphate insecticides. Preferred test is Insecticide Exposure Panel (0020175).
Submit With Order
Mnemonic
CHE-P
Methodology
Quantitative Enzymatic
Performed
Mon-Fri
Reported
Between 1 and 4 days
New York DOH Approval Status
This test is New York DOH approved.
Specimen Required
Patient Preparation
Specimen must be drawn prior to surgery or more than two days following surgery. Do not draw in recovery room.  
Collect
Serum separator tube, lavender (EDTA), or pink (K2EDTA).  
Specimen Preparation
Allow serum specimen to clot completely at room temperature. Separate serum or plasma from cells ASAP or within 2 hours of collection. Transport 0.5 mL serum or plasma. (Min: 0.1 mL)  
Storage/Transport Temperature
Refrigerated.  
Unacceptable Conditions
Whole blood on clot. Hemolyzed specimens.  
Remarks
Plasma values are slightly lower than serum.  
Stability
Ambient: 4 hours; Refrigerated: 1 week; Frozen: 3 months  
Reference Interval
2,900-7,100 U/L
Interpretive Data
Note
CPT Code(s)
82480
Components
Component Test Code*Component Chart Name
0020167Pseudocholinesterase, Total
* Component test codes cannot be used to order tests. The information provided here is not sufficient for interface builds; for a complete test mix, please click the sidebar link to access the Interface Map.
Cross References
  • Cholinesterase (Pseudo), Total
  • Cholinesterase, Serum or Plasma
  • Serum Cholinesterase (Pseudochol)