Test Details

Mnemonic

ZPNYL

Ordering Code

3508640

CPT-4 Code(s)

82131

Specimen Information

Collect

Green sodium or lithium heparin
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Specimen Preparation

Centrifuge, separate plasma from cells within 2 hours of collection and send 0.5 mL plasma frozen in a screw-capped plastic vial.
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Minimum Volume

0.25 ml
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Transport Temperature

Frozen
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Rejection Criteria

Hemolyzed specimens
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Stability

Room temperature: Unacceptable
Refrigerated: 24 hours
Frozen: 30 days
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Methodology

Quantitative Liquid Chromatography/Tandem Mass Spectrometry
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Reference Range

0 - 30 days: 30 – 95 µmol/L
1 month - 11 months: 30 – 90 µmol/L
1 year and older: 30 - 82 µmol/L
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Performing Laboratory

ARUP Reference Laboratory
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New York DOH Approval Status

Yes
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