Aminolevulinic Acid (ALA), Urine ALAU

Method(s) Quantitative Ion Exchange Chromatography/Spectrophotometry
Specimen Required
Collect Random or 24-hour urine. 24-hour samples should be refrigerated during collection.
Transport

4 mL from a well-mixed random or 24-hour collection at 2-8°C. (Min: 1.2 mL)

Remarks

The most important aspect of specimen preservation is adequate refrigeration during collection, storage, and transport. Record total volume and collection time interval on transport tube and test request form.

Stability Ambient: Unacceptable; Refrigerated: 4 days; Frozen: 1 month
Schedule Mon, Wed, Fri
Billing Code 5010346
CPTCode 82135
Notes Specimen preservation with acid or base is discouraged and may cause assay interference. When collecting urine for additional tests that require acid or base preservation, the ALA aliquot should be REMOVED prior to the addition of the acid or base.
Preferred Specimen Collection Device(s)
Reference Interval
Component Reference Interval 
Aminolevulinic Acid, Urine 0-35 umol/L 
Aminolevulinic Acid, Urine (24 hour) 0-60 umol/d 
Creatinine (24 hour)AgeMaleFemale
 3-8 years140-700 mg/d140-700 mg/d
 9-12 years300-1300 mg/d300-1300 mg/d
 13-17 years500-2300 mg/d400-1600 mg/d
 18-50 years1000-2500 mg/d700-1600 mg/d
 51-80 years800-2100 mg/d500-1400 mg/d
 81 years and older600-2000 mg/d400-1300 mg/d
No Appointment Necessary
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11 Patient Service Centers in Central New York.

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