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Cholinesterase, RBC and Plasma
| Item | Value | ||||||
|---|---|---|---|---|---|---|---|
| Approval req'd? | No | ||||||
| Available Stat? | No | ||||||
| Test code | CPR | ||||||
| Test group | Cholinesterase | ||||||
| Performed by | Quest | ||||||
| Sendout? | Yes | ||||||
| Method | Enzymatic, colorimetric | ||||||
| Collection Instructions | Transport immediately to laboratory | ||||||
| Container type | Lavender top x2 | ||||||
| Amount to Collect | 6 mL blood | ||||||
| Sample type | EDTA whole blood AND EDTA Plasma | ||||||
| Preferred volume | 3 mL blood 3 mL plasma |
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| Min. Volume | 2 mL blood 2 mL plasma |
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| UCSF Rejection Criteria | Hemolyzed or lipemic sample(s) | ||||||
| Processing notes | Centrifuge one tube within one hour of collection and pour off separated plasma into a plastic tube. Avoid hemolysis. Do not send packed cells. Send whole blood and plasma samples refrigerated. Order Quest test # 338 and if patient is Brown & Toland, order LabCorp test # 214007 | ||||||
| Ref Lab Rejection Criteria | Sample received either frozen or at room temperature. Failure to provide both plasma and whole blood sample. | ||||||
| Units | IU/L | ||||||
| Normal range |
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| Synonyms | Acetylcholinesterase; organophosphate p; oisoning | ||||||
| Turn around times | Test run Monday-Friday. Turnaround time: 1-4 days. | ||||||
| Additional information | Decreased in organophosphate poisoning. Hemolysis can lead to apparent increases in plasma cholinesterase activity, and could mask an enzyme deficiency. |
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| CPT coding | 82482-90, 82480-90 | ||||||
| LOINC code | 2099-0 | ||||||
| Last Updated | 10/2/2010 11:51:33 AM | ||||||
| Entry Number | 197 |
If you have additional questions regarding this test, please call: 415-353-1667