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Arylsulfatase A
| Item | Value |
|---|---|
| Approval req'd? | No |
| Available Stat? | No |
| Test code | ASUL |
| Performed by | Quest |
| Sendout? | Yes |
| Method | Enzymatic |
| Container type | Urine cup |
| Amount to Collect | See preferred volume |
| Sample type | Random urine |
| Preferred volume | 20 mL urine |
| Min. Volume | 8 mL urine |
| Processing notes | Refrigerate, DO NOT freeze. Order Quest #34694X. |
| Ref Lab Rejection Criteria | Room temp or frozen sample |
| Units | U/L |
| Normal range | > 2.4 U/L |
| Synonyms | Multiple sulfatase deficiency; Sulfatase deficiency,multiple |
| Stability | Refrigerated: 10 days |
| Turn around times | Test run Tuesday & Thursday. Results available 2-4 days after set-up. |
| Additional information | Absence of the enzyme Arylsulfatase A results in an accumulation in the cells of cerebroside sulfate (a toxic substance) which causes the disease metachromatic leukocystrophy (MLD). MLD is a lysosomal storage disorder disease in which the patient lacks a protein needed to metabolize ingested food. It is transmitted as an autosomal recessive trait and is characterized by a wide range of symptoms with both early and delayed onset forms. See also Lysosomal Disease. |
| CPT coding | 84311-90 |
| LOINC code | 2061-0 |
| Last Updated | 3/24/2013 7:47:04 PM |
| Entry Number | 73 |
If you have additional questions regarding this test, please call: 415-353-1667