Colorimetric Enzyme Assay
Detection of Metachromatic Leukodystrophy
> or = 62 nmol/h/mg. Results from this assay may not reflect carrier status because of individual variation of arylsulfatase A enzyme levels. Low normal values may be due to the presence of pseudodeficiency gene or carrier gene. Patients with these depressed levels may be phenotypically normal.
* Reference ranges may change over time. Please refer to the original patient report when evaluating results.
Results from this assay may not reflect carrier status because of individual variation of arylsulfatase A enzyme levels.
8 - 16 days
- Metachromatic Leukodystrophy
- Mucolipidoses, Types II and III
- ARYLSULFATASE A, LEUKOCYTES
Collect blood in an yellow top (ACD) solution A or B tube. Specimen must arrive within 24 hrs of collection. Refrigerate intact specimen; do not freeze. Draw Monday-Thursday only, and not the day before a holiday.
Collect specimens Monday - Thursday only, and not the day before a holiday; must arrive at performing lab within 96 hours of collection.
Test sent to Mayo Medical Laboratories.