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Porphobilinogen deaminase, erythrocyte-994

Test info

Test name:

Porphobilinogen deaminase, erythrocyte

Test number:

994

Excellian order number:

LAB994

Abbreviation:

MSO

Alternate names:

PBG
Porphobilinogen deaminase, erythrocyte

Useful for:

To confirm a diagnosis of acute intermittent porphyria (AIP) following a positive urine porphobilinogen (PBG) test
Evaluate disease risk in family members of an individual with a confirmed diagnosis of AIP

Specimen

Specimen type:

EDTA whole blood

Collection container:

Lavender (EDTA), 4mL

Volume:

3.0 mL

Minimum volume:

1.0 mL

Collection instructions:

Immediately following collection, mix sample thoroughly by gently inverting 8 - 10 times to prevent clotting

Processing instructions:

Transfer EDTA whole blood to a Screw-cap polypropylene frozen transport vial/tube - 4mL (LabCorp), labelled as EDTA whole blood
Freeze

Transport container:

Screw-cap polypropylene frozen transport vial/tube - 4mL (LabCorp)

Transport and stability:

Frozen (preferred) - 1 month

Refrigerated - 1 week

Ambient - 4 hours

Reason for rejection:

Clotted specimens

Performance

Performing lab:

ARUP Laboratories Inc (99550) via LabCorp (827632): R-NX

Days set up:

Tu, Th

TAT:

2 - 7 days

Method:

Enzymatic/Fluorometry

Clinical and Interpretive info

Reference ranges:

Adult: 2.10 - 4.30 mU/g Hb

Billing

CPT codes:

82657

LOINC code:

Result 49228-0

Tracking

Date created:

05/24/2019

Revised date:

12/29/2019

Review date:

08/18/2022