ARUP's Laboratory Test Directory

Cholinesterase, RBC/Hb Ratio : 0020174

Mnemonic: CHE-RBC

Methodology: Quantitative Enzymatic
Performed: Mon-Fri
Reported: Between 1 and 4 days
Specimen Required: Collect: Lavender (EDTA) or pink (K2EDTA).

Specimen Preparation: DO NOT FREEZE. Transport 3 mL whole blood. (Min: 1 mL))

Storage/Transport Temperature: Refrigerated. Do not place whole blood directly on cool packs when shipping.

Unacceptable Conditions: Green (sodium or lithium heparin). Frozen specimens. Clotted or hemolyzed specimens.

Stability (collection to initiation of testing): Ambient: 4 hours; Refrigerated: 1 week; Frozen: Unacceptable
Reference Interval:
25-52 U/g Hb
CPT Code(s): 82482