ALA dehydratase, whole blood-994

Test info

  
ALA dehydratase, whole blood
  
994
  
LAB994
  
MSO
  

This test is the preferred test for the confirmation of a diagnosis of aminolevulinic acid dehydratase deficiency porphyria

Specimen

  
  • Patient must be fasting 12-14 hours
    • Water may be taken as needed; no other liquids are allowed
  • Patient should abstain from alcohol for 24 hours

 

  
Sodium (Na) heparin whole blood
  
  
4.0 mL
  
3.0 mL
  

Place the specimen on wet ice immediately following collection

  

Submit entire tube, unspun and unopened.

 

  

Dk green (Na heparin) tube, unspun and unopened

  

Include a list of medications patient is currently prescribed

  

Refrigerated (preferred) - 7 days

Frozen - NO

Ambient - 4 days

  
  • Hemolysis
  • samples received frozen
  • sampes received at ambient/room temperature

Performance

  
Mayo Clinic Laboratories (ALAD) via LabCorp (811129): R-NX
  
Tu, Th
  
4 - 6 days
  

Enzymatic End Point/Spectrofluorometric

Clinical and Interpretive info

  

≥ 4.0 nmol/L/sec
    3.5 - 3.9 nmol/L/sec (indeterminate)
< 3.5 nmol/L/sec (diminished)

  

Billing

  
82657
  
Result 59462-2

Tracking

  
12/11/2007
  
01/18/2021