Important Information to Know During Our Campus Transformation — Read More
Search All

Lab Test Dictionary

Arylsulfatase A, Leukocytes (ARSAW)


Colorimetric Enzyme Assay

Specimen Type

Whole Blood

Performing Lab

Mayo Medical Lab

Epic ID

Other Reference Test

Lab Test Days


Standard TAT

8-15 Days

Collection Information

Specimen Required

5-6 mL Whole Blood

Container Type

Yellow (ACD), Solution B

Collection Instructions

Collect Monday-Thursday 0800-1300 only, no weekends or holidays. Whole blood collected in an ACD Solution A (yellow-top) tube is also acceptable. Complete a Mayo Biochemical Genetics Patient Info form and submit with specimen to lab.

Processing Information - Lab Use Only

Transport Temperature


Specimen Stability

Room Temp: 4 Days; Refrigerated: 4 Days (Preferred); Frozen: Unacceptable

Rejection Criteria

Gross hemolysis; Specimen > 96 Hours Old

Test Volume Required

6 mL Whole Blood

Minimum Test Volume

5 mL Whole Blood

Processing Instructions

Order in Mayolink and send with Mayo courier Monday-Thursday only with completed Mayo Biochemical Genetics Patient Info form.

CPT Codes