Sign in →

Test Code ALAUR Aminolevulinic Acid, Urine

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

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

Report Available

3 to 7 days

Specimen Retention Time

14 days

Reject Due To

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