Test Details

Mnemonic

ZPHRB

Ordering Code

3509190

CPT-4 Code(s)

84311, plus 82542 if reflexed to Porphyrins, Fractionated, at additional cost

Specimen Information

Patient Preparation

Patient should avoid alcohol for 24 hours before draw.

Collect

Green sodium heparin

Specimen Preparation

Place collection tube on wet ice immediately after drawing. Send entire whole blood specimen. Please include list of medications patient is currently taking.

Alternate Specimen

Dark blue heparin, lavender EDTA, green lithium heparin

Minimum Volume

3.0 mL

Transport Temperature

Refrigerated

Rejection Criteria

Frozen whole blood, gross hemolysis

Stability

Room temperature: Unacceptable
Refrigerated: 7 days
Frozen: Unacceptable

Methodology

High Performance Liquid Chromatography/Spectrofluorometric
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Reference Range

Porphyrins, Total, RBC: <80 mcg/dL
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Performing Laboratory

MAYO
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New York DOH Approval Status

Yes
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