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Test Code I2SW Iduronate-2-sulfatase, Whole Blood

Useful For

Diagnosis of mucopolysaccharidosis II (MPS II, Hunter syndrome) in whole blood specimens

Reporting Name

Iduronate-2-sulfatase, B

Specimen Type

Whole blood

Specimen Required

Collection Container/Tube:

Preferred: Lavender top (EDTA)

Acceptable: Yellow top (ACD)

Specimen Volume: 2 mL


Necessary Information:

Provide a reason for referral with each specimen.


Specimen Minimum Volume

0.5 mL

Specimen Stability Information

Specimen Type Temperature Time
Whole blood Ambient (preferred) 7 days
  Refrigerated  7 days

Reference Values

≥1.5 nmol/h/mL

Day(s) and Time(s) Performed

Wednesday, morning

Performing Laboratory

Mayo Medical Laboratories in Rochester

Test Classification

This test was developed and its performance characteristics determined by Mayo Clinic in a manner consistent with CLIA requirements. This test has not been cleared or approved by the U.S. Food and Drug Administration.

CPT Code Information

82657

LOINC Code Information

Test ID Test Order Name Order LOINC Value
I2SW Iduronate-2-sulfatase, B In Process

 

Result ID Test Result Name Result LOINC Value
61902 Iduronate-2-sulfatase, B In Process
35211 Reviewed By No LOINC Needed
35212 Interpretation (I2SW) 59462-2

Method Name

Fluorometric Enzyme Assay

Forms

1. New York Clients-Informed consent is required. Please document on the request form or electronic order that a copy is on file. An Informed Consent for Genetic Testing (T576) is available in Special Instructions.

2. Biochemical Genetics Patient Information (T602) in Special Instructions.