Aminolevulinic Acid Dehydratase (ALAD), Blood 

2011012
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Abnormal
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Time Sensitive

Ordering Recommendation

Confirm a diagnosis of aminolevulinic acid dehydratase deficiency porphyria (ADP), an extremely rare porphyria.

Mnemonic

ALA DEHYD

Methodology

Quantitative Enzymatic Assay/Spectrofluorometry

Performed

Varies

Reported

3-11 days

New York DOH Approval Status

This test is New York DOH approved.

Specimen Required

Patient Preparation

Patient should abstain from alcohol for 24 hours prior to collection.

Collect

Green (sodium heparin). Also acceptable: Lavender (EDTA) or green (lithium heparin). Collect specimen and place in ice bath immediately.

Specimen Preparation

Transport 4 mL whole blood in original collection container. (Min: 3 mL)
Test is not performed at ARUP; separate specimens must be submitted when multiple tests are ordered.

Storage/Transport Temperature

Refrigerated.  Also acceptable: Ambient.

Unacceptable Conditions

Grossly hemolyzed specimens.

Remarks

Include a list of medications the patient is currently taking.

Stability

Ambient: 4 days; Refrigerated: 1 week; Frozen: Unacceptable

Reference Interval

By Report

Interpretive Data



Compliance Category

Performed by non-ARUP Laboratory

Note

Hotline History

N/A

CPT Codes

82657

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Components

Component Test Code* Component Chart Name LOINC
2011013 ALA Dehydratase, Whole Blood 12916-3
2011014 ALA - Interpretation 59462-2
3002779 ALA - Reviewed by
* Component test codes cannot be used to order tests. The information provided here is not sufficient for interface builds; for a complete test mix, please click the sidebar link to access the Interface Map.

Aliases

  • ALAD (Aminolevulinic Acid Dehydratase)
  • Deficiency Porphyria (ADP)
  • Doss Porphyria; Porphobilinogen (PBG) Synthase
Aminolevulinic Acid Dehydratase (ALAD), Blood

Mayo Clinic Laboratories