Ustekinumab Quantitation with Antibodies, Serum

Ustekinumab Quantitation with Antibodies, Serum

Test Code

39986
80299, 83520
39986
80299, 83520
This test is not available in all locations. Please provide SERVICE AREA INFORMATION to confirm Test Code for the lab that services your account or to find available tests you can order.
In-home collection is not available in your area through Quest Mobile.

Clinical Significance

Ustekinumab Quantitation with Antibodies, Serum - Evaluation of loss of response to therapy.
Quantification of ustekinumab in human serum.
Trough level quantitation for evaluation of patients treated with ustekinumab.
Detection of antibodies to ustekinumab in human serum.

Test Resources

None found for this test
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Test Details

Patient Preparation

Collect immediately before next scheduled dose (trough specimen)

Methodology

Enzyme Linked Immunosorbent Assay (ELISA)

Assay Category

This test was developed and its performance characteristics have been determined by Mayo Clinic Laboratories. It has not been cleared or approved by the FDA. This assay has been validated pursuant to the CLIA regulations and is used for clinical purposes.

This test code is for New York patient testing. For non-New York patient testing, the recommended alternative test code is 18217.

LOINC® Codes, Performing Laboratory

Service Area must be determined
Collect immediately before next scheduled dose (trough specimen)

Methodology

Enzyme Linked Immunosorbent Assay (ELISA)
This test was developed and its performance characteristics have been determined by Mayo Clinic Laboratories. It has not been cleared or approved by the FDA. This assay has been validated pursuant to the CLIA regulations and is used for clinical purposes.

This test code is for New York patient testing. For non-New York patient testing, the recommended alternative test code is 18217.
Service Area must be determined

Preferred Specimen(s)

0.5 mL serum

Minimum Volume

0.35 mL

Collection Instructions

Collect immediately before next scheduled dose (trough specimen)

Transport Container

Transport tube

Transport Temperature

Refrigerated (cold packs)

Specimen Stability

  • Room temperature: Unacceptable
  • Refrigerated: 21 days
  • Frozen: 21 days

Reject Criteria

Gross hemolysis • Grossly lipemic • Heat-inactivated specimen

Setup Schedule

Service Area must be determined
0.5 mL serum
0.35 mL
Collect immediately before next scheduled dose (trough specimen)
Transport tube
Refrigerated (cold packs)
Room temperature: Unacceptable
Refrigerated: 21 days
Frozen: 21 days
Gross hemolysis • Grossly lipemic • Heat-inactivated specimen
Service Area must be determined
This test is not available in all locations. Please provide ACCOUNT INFORMATION NEEDED to confirm Test Code for the lab that services your account or to find available tests you can order.
In-home collection is not available in your area through Quest Mobile.
Test Details

Clinical Significance

Test Resources

Reference ranges are provided as general guidance only. To interpret test results use the reference range in the laboratory report.

The CPT codes provided are based on AMA guidance and are for informational purposes only. CPT coding is the sole responsibility of the billing party. Please direct any questions regarding coding to the payer being billed.

This material contains content from LOINC® (http://loinc.org). The LOINC Table, LOINC Table Core are copyright © 1995-2019, Regenstrief Institute, Inc. and the Logical Observation Identifiers Names and Codes (LOINC) Committee and is available at no cost under the license at http://loinc.org/license.

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