![]() |
|||||||||
90135:ARYLSULFATASE A, 24-HOUR URINE | |||||||||
Alias Names: | ARSA Deficiency / Metachromatic Leukodystrophy / MLD | ||||||||
Methodology: | Colorimetric / Kinetic | ||||||||
Edit Date: | 8/31/2010 | ||||||||
Performed: | Monday, Thursday | ||||||||
Released: | 4-6 days after setup at PeaceHealth Laboratories’ reference lab | ||||||||
CPT Code: | 84311-90 | ||||||||
Specimen Collection Details | |||||||||
Collection: | 10 mL from a well mixed 24-hour urine collection. Refrigerate during collection, storage, and transport. No preservatives are necessary. | ||||||||
Handling: | Note total volume. Keep refrigerated. | ||||||||
Stability: | Refrigerated. Unstable ambient or frozen. | ||||||||
Standard Volume: | 10 mL aliquot urine | ||||||||
Minimum Volume: | 4 mL aliquot urine | ||||||||
Transport: | Refrigerated. | ||||||||
Comments: | Random urine is acceptable, but there are no normal ranges.
Useful for detection of metachromatic leukodystrophy (MLD) as a secondary specimen to confirm results from leukocytes (preferred initial specimen). |
Reference Range: | |||||||||||||||||||
>1 U/L
Note: Results from this assay may not reflect carrier status because of individual variation of arylsulfatase A enzyme levels. |
|||||||||||||||||||