Laboratory Test Information Guide

Details for Aryl Sulfatase A, Leukocyte/Fibroblasts/Urine

Test Name: Aryl Sulfatase A, Leukocyte/Fibroblasts/Urine
Alternate Name(s): Metachromatic Leukodystrophy
MLD
Laboratory: Biochemical Genetics
Specimen Type: 1. 2 x 6 mL Dark Green (Sodium Heparinized) top Vacutainer
2.. Fibroblasts
3. 5-10 mL of first a.m. urine
Collection Information: Sample must be collected so that it will be received in lab no later than 3:00pm of collection day.

1. Send 8-10 mL whole blood immediately. Keep cold but not frozen.

2. Collect fibroblasts and send in a sterile container.

3. Send 10 mL of first morning urine (preferable sample. Minimum volume required for testing is 5 mL of urine. Send to lab frozen.
Requisition: 1. & 3. GENERAL LABORATORY REQUISITION

2. REGIONAL CYTOGENETICS REQUISITION
Test Schedule: As required
Turnaround time from when specimen
is received in testing laboratory:
 
Routine
 
Stat
 
 
Reference Range: Leukocyte:
2.8-17.9 nmol/hr/mg protein

Fibroblast:
22-50 nmol/hr/mg protein

Urine:
2.2-6.4 nmol/hr/mL urine
Effective Date: 2008-06-10
Revised Date: 2019-06-24
Critical Value:  
Interpretive Comments:  
Special Processing:  
Comments:  
Method of Analysis:  
Critical Information Required:  
Storage & Shipment: Sample must be sent to lab immediately.
System Codes: 
Cerner
ASULFAL/ASULFAU/Fibro.-Use Req
 
Referred To: Biochemical Genetics Laboratory
London Health Sciences Centre
Victoria Hospital
Room B10-217
800 Commissioners Road East
London, Ontario
N6A 5W9

519-685-8500
Joanne ext. 71560
Specimen Receiving ext. 71561
Fax: 519-858-1063

Questions? Comments? Contact Laura Gopaul