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ALA24 / 096354L
AMINOLEVULINIC ACID (ALA), 24-HOUR URINE

Test Code ALA24 / 096354L 
Test AMINOLEVULINIC ACID (ALA), 24-HOUR URINE 
Methodology Column chromatography; spectrophotometry 
Description Useful in the diagnosis of porphyrias. 
Specimen 3 mL (minimum volume: 1.0 mL) from a 24-hour urine collection. Add 30 mL of 30% glacial acetic acid as preservative at the start of collection. For multiple collections, see "Urine Preservatives". Mix well, measure, and record volume prior to aliquoting. pH must be < 6. Send specimen FROZEN and PROTECT FROM LIGHT. See "Urine Collection" instructions. 
Reference Values 1.5 - 7.5 mg/24 hours 
Analytic Time 1 Day 
Day(s) Test Set Up Monday, Wednesday, Friday 
CPT Code(s) 82135  

Special Instructions