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HelpTest Code PCHE Cholinesterase, serum
Laboratory Code
LAB5054
Specimen Requirements
Specimen Type: Serum
Container/Tube: Gold Top (SSTII)
Volume: 5.0 mL
Minimum Volume: 0.5 mL serum
Collection Instructions: Allow specimen to clot for 30 mins and centrifuge within 2 hrs.
Specimen Stability
| Specimen Type | Serum |
|---|---|
| Ambient | 1 year |
| Refrigerate | 1 year |
| Frozen | 1 year |
Methodology
Enzymatic Assay
Days and Times Performed
24 hrs, TAT 1 day
Specimen Condition
| Gross Haemolysis | Alert/Reject |
|---|---|
| Icterus | OK |
| Gross Lipaemia | Alert/Reject |
| Others | Not applicable |
Reference Interval
| Male | 4,839 – 10,928 U/L |
|---|---|
| Female | 2,879 – 12,669 U/L |
Testing Laboratory
National University Hospital
Clinical Chemistry, 67724346
Useful For
Marker for organophosphate insecticide exposure.
Liver function test.
Service Code
31806
LOINC Code Information
2098-2
Alias
Butyrycholinesterase
Pseudocholinesterase
Update
Last updated 10/03/2025