8 - 16 days
Mucolipidoses, Types II and III
ARYLSULFATASE A, LEUKOCYTES
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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.
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.