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Delta-Aminolevulinic Acid Quantitative, 24 hour urine
|Collection Instructions||Obtain a special brown 24 hour urine collection container from Specimen Receiving.
It is critically important that the sample be refrigerated and shielded from light during collection by covering container with aluminum foil.
|Container type||Brown 24 hour urine collection container.
Click here for Urine Preservative Requirements
|Amount to Collect||Entire 24 hour urine output|
|Sample type||24 hour urine collection|
|Preferred volume||15 mL urine|
|Min. Volume||3 mL urine|
|UCSF Rejection Criteria||Sample not refrigerated during collection or shielded from light|
|Processing notes||Freeze aliquot in dark pouroff container [ or wrap container in aluminum foil] at -20C. Record total urine volume on the request slip and on the urine container. Order Quest test # 219.|
|Normal range||< 4.5 mg/24 h|
|Synonyms||ALA; D-ALA; DALA; D-aminolevulenic acid; Porphyrin precursors; Porphyria|
|Turn around times||Test performed Tuesday and Thursday. Turnaround time: 2-7 days.|
|Additional information||To convert mg/d to µmol/d (SI units) multiply by 7.626. This test should almost always be ordered in conjunction with Porphobilinogen (PBG) when the diagnosis of Acute Intermittent Porphyria is being considered.|
|Last Updated||3/24/2013 7:46:49 PM|