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Test Code ALAUR Aminolevulinic Acid, Urine

Reporting Name

Aminolevulinic Acid, U

Useful For

Assisting in the differential diagnosis of the acute hepatic porphyrias

Method Name

Liquid Chromatography Tandem Mass Spectrometry (LC-MS/MS)

Performing Laboratory

Mayo Clinic Laboratories in Rochester

Specimen Type

Urine


Ordering Guidance


The preferred test for lead toxicity in children is blood lead; order either PBDV / Lead, Venous, with Demographics, Blood or PBDC / Lead, Capillary, with Demographics, Blood.



Necessary Information


Patient's age is required.



Specimen Required


Patient Preparation: Patient should not consume any alcohol for 24 hours before specimen collection.

Supplies: Urine Tubes, 10 mL (T068)

Collection Container/Tube: Clean, plastic urine collection container

Submission Container/Tube: Plastic vial

Specimen Volume: 2 mL

Collection Instructions: Collect a random urine specimen.


Specimen Minimum Volume

1 mL

Specimen Stability Information

Specimen Type Temperature Time Special Container
Urine Refrigerated (preferred) 28 days
  Frozen  45 days

Reject Due To

  All specimens will be evaluated at Mayo Clinic Laboratories for test suitability.

Reference Values

<1 year: ≤10 nmol/mL

1-17 years: ≤20 nmol/mL

≥18 years: ≤15 nmol/mL

Day(s) Performed

Tuesday, Thursday

CPT Code Information

82135

LOINC Code Information

Test ID Test Order Name Order LOINC Value
ALAUR Aminolevulinic Acid, U 34284-0

 

Result ID Test Result Name Result LOINC Value
61547 Aminolevulinic Acid, U 34284-0
34347 Interpretation (ALA), U 59462-2
34348 Reviewed By 18771-6

Test Classification

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.

Report Available

3 to 7 days