Aminolevulinic Acid (ALA), Urine

Abbrev Code:ALAU   
Order Code:LAB6023Order Name:Aminolevulinic Acid Urine
Synonyms:ALA; Delta-Aminolevulinic Acid, Urine
Methodology:Ion exchange chromatography/spectrophotometry
CPT Codes: 82135 x1
Turnaround Time:Specimens are sent to reference laboratory Mon-Sat; results are reported within 1-4 days.
Special Instructions:Total volume and collection time interval is required.
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Urine Collection Procedure

Collection Instructions

Specimen:Urine, random or 24 hour collection
Optimal Volume:4 mL
Container:Plastic leakproof container, sterile
Alternate Containers: 3 L plastic jug
Collection Instructions:Refrigerate; 24 hour collection is preferred.
Patient Preparation:Refrain from alcohol consumption 24 hours prior to collection.
Causes for Rejection:Room temperature specimens.

Processing and Shipping

Specimen Processing:Aliquot 4 mL, 1.2 mL minimum. Store in freezer. Record total volume and collection time interval on transport tube.
Shipping Instructions:Ship refrigerated.
Stability:14 days refrigerated; 1 month frozen.
Test Performed at or Referral Lab Lab Sendouts  (ARUP)
Referral Lab number:80103


Reference Range:0-35 umol/L; 0-60 umol/24 hours
Use:Markedly increased in lead poisoning (may not have increased coproporphyrin excretion). Also may be elevated in the congenital hepatic porphyrias during acute attacks of acute intermittent porphyria, variegate porphyria and hereditary coproporphyria.

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