Test Details

Mnemonic

A2M

Ordering Code

3500328

CPT-4 Code(s)

83883

Specimen Information

Collect

Serum separator tube (SST)

Specimen Preparation

Centrifuge, separate serum from cells within 2 hours of collection and send 1.0 mL serum in a screw capped plastic vial.

Minimum Volume

0.4 mL

Transport Temperature

Refrigerated

Rejection Criteria

Hemolyzed specimens, CSF

Stability

Room temperature: Unacceptable
Refrigerated: 7 days
Frozen: 3 months (if frozen within 24 hours)

Methodology

Quantitative Nephelometry
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Reference Range

131 - 293 mg/dL
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Performing Laboratory

ARUP Reference Laboratory
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New York DOH Approval Status

Yes
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