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Test Code FUAUA Ustekinumab and Anti-Ustekinumab Antibodies, Serum

Important Note

Synomym " FUAUA"


Use Sunquest code FUAUA to order.

Secondary ID


Method Name

Automated ELISA Quantitative Stelara Comprehensive TDM Inform TX

Reporting Name

Ustekinumab and Anti-Ustekinumab Ab

Specimen Type

Serum SST

Necessary Information


Specimen Required

Specimen Type: SST Serum

Container/Tube: SST

Specimen Volume: 7 mL

Collection Instructions: Draw blood in a serum gel tube(s), plain red-top tube(s) is NOT acceptable. Spin down and send 7 mL of serum refrigerated (DO NOT ALIQUOT). 

Specimen Minimum Volume

5 mL

Specimen Stability Information

Specimen Type Temperature Time
Serum SST Refrigerated (preferred) 7 days
  Ambient  48 hours

Reject Due To


Mild OK; Gross Reject


Cold OK: Warm OK


Mild OK; Gross Reject


Mild OK; Gross Reject


Specimens other than SST serum

Reference Values

Clinically Reportable Ranges:

Ustekinumab 0.1 - 10 ug/mL

Anti-Ustekinumab antibody 3 - 100 AU/mL

Day(s) and Time(s) Performed

Monday through Friday

Performing Laboratory

Miraca Life Sciences, Inc

Test Classification

This test was developed by and its performance characteristics determined by Miraca Life Sciences. Miraca is regulated under the Clinical Laboratory Act Improvement Amendments of 1988 (CLIA) as qualified to perform high-complexity clinical testing. Test results are not diagnostic and should be used to supplement clinical findings from the ordering physician's workup.

CPT Code Information



LOINC Code Information

Test ID Test Order Name Order LOINC Value
FUAUA Ustekinumab and Anti-Ustekinumab Ab In Process


Result ID Test Result Name Result LOINC Value
Z4994 Dose mg In Process
Z4995 Interval weeks In Process
Z4996 Ustekinumab Drug Level In Process
Z4997 Anti-Ustekinumab Antibody In Process