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T3 UPTAKE, serum (087-0691)
Test Mnemonic:

  T3 UPTAKE
Methodology:

  Chemiluminescence
Performed:

 Clinical Chemistry
Turnaround Time:

  8 hours
Specimen Requirements:

Collect:  Routine venipuncture; AM collection preferred. SST (gel barrier), 7 or 10 mL red-topped tube (see storage instructions)

Storage/Transport:  Red-topped Tube: Centrifuge, remove serum from cells, refrigerate until delivered to laboratory; if delivery is delayed by more than 24 hours, freeze @ -20°C.

Causes for Rejection:  gross hemolysis or lipemia and blood drawn in any anticoagulated tube.
Clinical Information:

If applicable, state clinical information that is required to be provided with specimen.
Reference Range:

By report (reports may vary based on instrumentation, patient age and sex)
Note:

  The test can be ordered only once daily. Additional requests require the approval of the laboratory director.
CPT 4 Code:

  84479
7/13/12 Reviewed by Tho Nguyen, MT(ASCP)

When ordering tests for which Medicare or Medicaid reimbursement will be sought, physicians should only order tests that are medically necessary for the diagnosis or treatment of the patient.  Components of the organ or disease panels may be ordered individually.  The diagnostic information must substantiate all tests ordered and must be in the form of an ICD-9 code or its verbal equivalent.

  

 

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