Aminolevulinic Acid (ALA), Urine ALAU
Method(s) | Quantitative Ion Exchange Chromatography/Spectrophotometry | ||||||||||||||||||||||||||||||||||||||||
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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) |
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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. |
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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 | |||||||||||||||||||||||||||||||||||||||||
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