Test Details

Mnemonic

CPEP

Ordering Code

1000780

CPT-4 Code(s)

84681

Specimen Information

Collect

Serum separator tube (SST)

Specimen Preparation

Centrifuge, separate serum from cells and freeze within 1 hour of collection. Send 1.0 mL serum frozen in a screw capped plastic vial. CRITICAL FROZEN.

Alternate Specimen

Red top

Minimum Volume

0.5 mL

Transport Temperature

Critical frozen

Rejection Criteria

Grossly icteric and lipemic specimens, hemolyzed specimens, and plasma

Stability

Room temperature: Unacceptable
Refrigerated: Unacceptable
Frozen: 14 days

Methodology

Chemiluminescence
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Reference Range

0.8 - 3.9 ng/mL
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Performing Laboratory

Warde Medical Laboratory
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