Test Details

Mnemonic

AH50

Ordering Code

3618060

CPT-4 Code(s)

86161 RUO

Specimen Information

Collect

Serum separator tube (SST)

Specimen Preparation

Allow specimen to clot for an hour at room temperature, then centrifuge and separate serum from cells within 2 hours of collection. Send 1.0 mL serum frozen in a screw capped plastic vial. CRITICAL FROZEN.

Alternate Specimen

Serum: Red top

Minimum Volume

0.3 mL

Transport Temperature

Critical frozen

Rejection Criteria

Refrigerated or room temperature specimens.
Specimens other than serum.
Samples clotted at refrigerated temperature.
Specimens repeatedly frozen and thawed.

Stability

Room temperature: 2 hours
Refrigerated: Unacceptable
Frozen: 14 days

Methodology

Semi-quantitative Radial Immunodiffusion
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Reference Range

≥59% normal
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Performing Laboratory

ARUP Reference Laboratory
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New York DOH Approval Status

Yes
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