Connect Sign In
3005925
Ustekinumab Quantitation with Antibodies, Serum
USTEK
Ordering Recommendation
Trough level quantitation for evaluation of patients treated with ustekinumab.
New York DOH Approval Status
This test is New York state approved.
Specimen Required
Patient Preparation
Collect immediately before next scheduled dose (trough).
Collect
Serum separator tube (SST). Also acceptable: Plain red.
Specimen Preparation
Transfer 0.5 mL serum to an ARUP standard transport tube. (Min: 0.35 mL)
Test is not performed at ARUP; separate specimens must be submitted when multiple tests are ordered.
Storage/Transport Temperature
Refrigerated. Also acceptable: Frozen.
Unacceptable Conditions
Heat-inactivated specimen
Remarks
Stability
Ambient: Unacceptable; Refrigerated: 21 days; Frozen: 21 days
Methodology
Enzyme-Linked Immunosorbent Assay (ELISA)
Performed
Varies
Reported
5-8 days
Reference Interval
By report
Interpretive Data
Compliance Category
Performed by non-ARUP Laboratory
Note
Hotline History
Hotline History
Date of Change
Test Name Change
Methodology
Performance/Reported Schedule
Specimen Requirements
Reference Interval
Interpretive Data
Note
CPT Code
Component Change
Other Interface Change
New Test
Inactive
N/A
CPT Codes
80299; 83520
Components
| Component Test Code* | Component Chart Name | LOINC |
|---|---|---|
| 3005926 | Ustekinumab Quantitation, Serum | 87408-1 |
| 3005927 | Ustekinumab Antibodies, Serum | 87409-9 |
* Component test codes cannot be used to order tests. The information provided here is not sufficient for interface builds; for a complete test mix, please click the sidebar link to access the Interface Map.
Aliases
- Stelara
Ustekinumab Quantitation with Antibodies, Serum
Mayo Clinic Laboratories
