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Laboratory Test Directory

Pseudocholinesterase, Total


Name Method Department Units
Cholinesterase, Plasma Quantitative Enzymatic
Send Out U/L

Specimen Requirements

Plasma Spun, Serum Spun

Container Type Container Size Specimen Volume

Purple tube (EDTA)

3 mL 0.5 mL

Red tube, (no anticoagulant), No Gel

3 mL 0.5 mL

Gold tube, (SST) with Gel

3.5 mL 0.5 mL

Refrigerated - 1 week(s)
Frozen - 3 month(s)
Room temperature - 4 hour(s)

Specimen Preparation

  • Centrifuge within 2 hours, separate supernatant and refrigerate

Reasons for Rejection

  • Not centrifuged within time frame
  • Hemolyzed specimen
  • Specimen drawn during surgery, in recovery room or within 2 days post surgery


Specimen must be drawn prior to surgery or more than two days following surgery.  Do not draw in recovery room.

Plasma values slightly lower than serum.

CPT Code

  • 82480