Test Details
Mnemonic
DNARA
Ordering Code
3685445
CPT-4 Code(s)
82638, 82480
Specimen Information
Patient Preparation
Sample must be drawn prior to surgery or more than two days following surgery. Do not draw in recovery room.
Collect
Serum separator tube (SST)
Specimen Preparation
Allow sample to clot completely at room temperature. Separate serum from cells within 2 hours. Send 1.0 mL serum in a screw capped plastic vial.
Alternate Specimen
Plasma: EDTA, heparin (sodium or lithium)
Minimum Volume
0.25 mL
Transport Temperature
Refrigerated
Rejection Criteria
Hemolyzed specimens
Stability
Room temperature: 4 hours
Refrigerated: 7 days
Frozen: 3 months
Refrigerated: 7 days
Frozen: 3 months
Methodology
Enzymatic
Reference Range
Pseudocholinesterase: 2900 - 7100 U/L
Dibucaine Number
Dibucaine Number
Performing Laboratory
ARUP Reference Laboratory
New York DOH Approval Status
Yes