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Recommendations when to order or not order the test. May include related or preferred tests.
Monitor response to CD3 immunosuppressive therapy.
New York DOH Approval Status
Indicates test has been approved by the New York State Department of Health.
This test is New York state approved.
Specimen Required
Patient PreparationInstructions patient must follow before/during specimen collection.
Draw specimen before administering immunosuppressive medications.
CollectSpecimen type to collect. May include collection media, tubes, kits, etc.
Green (Sodium or Lithium Heparin), Lavender (EDTA), or Pink (K2EDTA).
Specimen PreparationInstructions for specimen prep before/after collection and prior to transport.
Transport 5 mL whole blood. (Min: 0.5 mL)
Storage/Transport TemperaturePreferred temperatures for storage prior to and during shipping to ARUP. See Stability for additional info.
Room temperature. Also acceptable: Refrigerated.
Unacceptable ConditionsCommon conditions under which a specimen will be rejected.
Clotted or hemolyzed specimens.
RemarksAdditional specimen collection, transport, or test submission information.
Specimens must be analyzed within 72 hours of collection. New York State Clients: Same as the above.
StabilityAcceptable times/temperatures for specimens. Times include storage and transport time to ARUP.
Ambient: 72 hours; Refrigerated: 72 hours; Frozen: Unacceptable New York State Clients: Same as the above.
Methodology
Process(es) used to perform the test.
Quantitative Flow Cytometry
Performed
Days of the week the test is performed.
Sun-Sat
Reported
Expected turnaround time for a result, beginning when ARUP has received the specimen.
1-2 days
Reference Interval
Normal range/expected value(s) for a specific disease state. May also include abnormal ranges.
Test Number
Components
Reference Interval
% CD3+/TCR ab+
Age
Reference Interval (%)
17 years and older
56 - 85
Absolute CD3+/TCR ab+
Age
Reference Interval (cells/µL)
17 years or older
633-2532
Interpretive Data
May include disease information, patient result explanation, recommendations, or details of testing.
In this test, the percent CD3 cells are those cells that are positive for both CD3 and the alpha-beta chain of the T-cell receptor (TCR) and are presumed immunologically competent.
This test was developed and its performance characteristics determined by ARUP Laboratories. It has not been cleared or approved by the US Food and Drug Administration. This test was performed in a CLIA certified laboratory and is intended for clinical purposes.
Compliance Category
Laboratory Developed Test (LDT)
Note
Additional information related to the test.
THIS TEST IS FOR TRANSPLANT PATIENTS ONLY. Effective immunosuppressive therapy with OKT3 can be documented by verifying CD3 antigen removal using this test. For immunocompromised patients, order Lymphocyte Subset Panel 4 - T-Cell subsets Percent & Absolute (0095950).
Hotline History
N/A
CPT Codes
The American Medical Association Current Procedural Terminology (CPT) codes published in ARUP's Laboratory Test Directory are provided for informational purposes only. The codes reflect our interpretation of CPT coding requirements based upon AMA guidelines published annually. CPT codes are provided only as guidance to assist clients with billing. ARUP strongly recommends that clients confirm CPT codes with their Medicare administrative contractor, as requirements may differ. CPT coding is the sole responsibility of the billing party. ARUP Laboratories assumes no responsibility for billing errors due to reliance on the CPT codes published.
* 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.
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