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Test Directory PBG Deaminase, Whole Blood

PBG Deaminase, Whole Blood

Test Summary

Confirmation of a diagnosis of acute intermittent porphyria (AIP)

Aliases

Acute Intermittent Porphyria (AIP). MAYO code PBGD

Specimen Collection

Special Instructions

N/A

Preferred Specimen

4 mL whole blood collected in a sodium heparin green top tube

Minimum Volume

3 mL

Instructions

N/A

Patient Preparation

Abstinence from alcohol for at least 24 hours prior to specimen collection is essential as ethanol induces porphobilinogen deaminase (PBGD) activity, which may lead to a false-normal result.

Storage

Sodium Heparin Green Top tube

Transport Temperature

Refrigerated

Specimen Stability

Room Temperature: 7 Days
Refrigerated: 8 Days
Frozen: Unacceptable

Limitations

N/A

Other Acceptable Specimens

Lavender top tube (EDTA) or light green top tube (lithium heparin)

Unacceptable Specimens

Gross hemolysis

Order Code

PBGD

EPIC (Premier) Code

LAB6381

Includes

N/A

CPT Code

82657

Billing Code

650032

CPT Statement

Methodology

Enzymatic End point/Spectrofluorometric

FDA Status

This test was developed and its performance characteristics determined by Mayo Clinic in a manner consistent with CLIA requirements. It has not been cleared or approved by the US Food and Drug Administration.

Physician Attestation of Informed Consent

N/A

Testing Laboratory

Mayo Clinic Laboratories
200 First Street SW
Rochester MN, 55905

Department

Reference Testing

Reference Range

N/A

Setup Schedule / Expected Turnaround Time

Thursday; Report available: 3 - 9 days