DNARA – “Pseudocholinesterase Dibucaine”

Update to specimen requirements, alternate specimen, rejection criteria, and methodology

Specimen Preparation: Allow sample to clot completely at room temperature. Separate serum or plasma from cells within 2 hours. Send 1.0 mL serum or plasma in a screw capped plastic vial.

Alternate Specimen: Serum: Red top; Plasma: EDTA, green sodium or lithium heparain, pink (K2EDTA)

Rejection Criteria: Light blue (sodium citrate), gray (oxalate/fluoride) whole blood

Methodology: Quantitative Enzymatic Assay