Patient Prep: 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.
Remarks: Plasma values are slightly lower than serum.
Unacceptable Conditions: Whole blood on clot. Hemolyzed specimens.
Stability (collection to initiation of testing): Ambient: 4 hours; Refrigerated: 1 week; Frozen: 3 months
Reference Interval:
2,900-7,100 U/L
CPT Code(s):
82480
Cross References:
Cholinesterase, Serum or Plasma (Pseudocholinesterase, Total)