Test Details
Mnemonic
ZPHFP
Ordering Code
3509180
CPT-4 Code(s)
84311, plus 82542 if fractionation performed, at additional cost
Specimen Information
Patient Preparation
Patient should not consume alcohol for 24 hours prior to draw. Include list of medications patient is currently taking.
Collect
Green sodium or lithium heparin
Specimen Preparation
Centrifuge, separate and send 3.0 mL plasma in an amber screw capped plastic vial. Protect from light. CRITICAL FROZEN.
Alternate Specimen
Plasma: EDTA
Minimum Volume
1.0 mL
Transport Temperature
Critical frozen
Rejection Criteria
Specimen not protected from light
Plasma gel tube, Gross hemolysis
Plasma gel tube, Gross hemolysis
Stability
Room temperature: Unacceptable
Refrigerated: Unacceptable
Frozen: 14 days
Refrigerated: Unacceptable
Frozen: 14 days
Methodology
Extraction Scanning Spectrofluorometry/High Performance Liquid Chromatography
Reference Range
≤1.0 mcg/dL
If Total Porphyrins are >1.0 mcg/dL, then Porphyrins, Fractionation will be performed at an additional charge.
If Total Porphyrins are >1.0 mcg/dL, then Porphyrins, Fractionation will be performed at an additional charge.
Performing Laboratory
Mayo Clinic Laboratories
New York DOH Approval Status
Yes