Aminolevulinic Acid Urine ALA24

Synonyms

Allscripts (AEHR) Order Name

Aminolevulinic Acid, Urine 24 Hour

Sunrise Clinical Manager (SCM) Order Name

Aminolevulinic Acid, Urine 24 Hour

Clinical Info

ALA is a precursor to uroporphyrin, coproporphyrin, and protoporphyrin.
Concentrations of ALA are greatly increased in many patients with acute
neurological forms of porphyrias and in some patients with chronic alcohol abuse.

Specimen Type

Urine

Container

24-hour urine collection container

Collection Instructions

Container/Tube: 24-hour urine collection container
Specimen: 2 mL from 24 hr. urine collection (0.6 mL min) No Preservative Protect from Light
Transport Temperature: Refrigerated.

Collection Instructions
Collect without preservative. Refrigerate during and after collection.
Wrap container in aluminum foil to protect from light.
Please specify on the request form and on the urine container the total 24-hour urine volume.

Alternate Specimen Urine preserved with: 25 ml 6N HCL. Protect from Light

Transport Instructions

Send specimen refrigerated. Stable for 7 Days. If more than 7 days send frozen urine.

Specimen Stability

Unacceptable Room Temperature
7 Days Refrigerated
30 Days Frozen

Methodology

Colorimetric

Days Performed

Tuesday, Thursday and Saturday
 
TAT  2 - 3 Days

Performing Laboratory

Quest Diagnostics' Nichols Institute, Inc. - Chantilly

CPT

81050 - urine timed measurement
82135 - ALA
 
LOINC: 2200-4

PDM

5902031

Result Interpretation

  Delta ALA, 24-Hour Urine

Adults <4.5 mg/24 h


Creatinine, 24-Hour Urine

3-8 Years 0.11-0.68 mg/24 h
9-12 Years 0.17-1.41 mg/24 h
13-17 Years 0.29-1.87 mg/24 h
Adults 0.63-2.50 mg/24 h

Forms

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