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Aminolevulinic Acid Dehydratase (ALAD), Blood 
2011012
Ordering Recommendation

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

Mnemonic
ALA DEHYD
Methodology
Quantitative Enzymatic/Spectrofluorometry
Performed
Varies
Reported
3-10 days
New York DOH Approval Status
This test is New York DOH approved.
Submit With Order
ARUP Consult®
Disease Topics
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 5 mL whole blood in original collection container. (Min: 3 mL) 
Storage/Transport Temperature
Refrigerated. 
Unacceptable Conditions
Grossly hemolyzed specimens. 
Remarks
Include a list of medications the patient is currently taking. 
Stability
Ambient: Unacceptable; Refrigerated: 4 days; Frozen: Unacceptable 
Reference Interval
By Report
Interpretive Data


Components
Component Test Code*Component Chart NameLOINC
2011013ALA Dehydratase, Whole Blood32703-1
2011014ALA Dehydratase, Interpretation59462-2
* 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

Performed at Mayo