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    AI Overview
    Total Thyroxine (TT4) Point-of-Care Testing (POCT) reagents provide rapid, quantitative measurements of bound and unbound T4 in serum, essential for evaluating thyroid function (hyper- or hypothyroidism). These rapid kits, often using fluorescence immunoassay technology, allow for fast on-site results compared to central laboratory tests. 
    Key Aspects of Total Thyroxine POCT Reagent Tests: 
    • Purpose: Measures total thyroxine to detect high (hyperthyroidism) or low (hypothyroidism) thyroid hormone levels.
    • Methodology: Most utilize fluorescence immunoassay (FIA) or similar rapid lateral flow technologies on a dedicated, compact, benchtop analyzer.
    • Sample Type: Typically requires serum.
    • Applications: Primarily used for rapid assessment in clinical settings, including human medicine and veterinary diagnostics.
    • Speed: Provides rapid turnaround times, often within minutes, compared to traditional laboratory methods.
    • Limitations: As a POCT tool, it is generally used for screening or screening-level diagnosis, often requiring follow-up tests like TSH or free T4 for confirmation. 
    Components and Suppliers: 
    • Reagent Kits: Typically include, as described for the Total Thyroxine (TT4) Test Kit (Fluorescence Immunoassay) by Hipro Biotechnology Co.,Ltd, fluorescent-labeled anti-T4 antibodies.
    • POCT Analyzer: A specialized analyzer or a Veterinary total Thyroxine (cTT4/fTT4) Test Kit from suppliers like Poclight Biotechnology is used for reading the quantitative results. 
    For accurate interpretation of TT4 results, they should be reviewed along with TSH and FT4 levels. 
    • Veterinary total Thyroxine (cTT4/fTT4) Test Kit - Poclight Biotechnology
      Veterinary total Thyroxine (cTT4/fTT4) Test Kit * Order(MOQ): ... * Payment: FOB, EXW. * Product Origin: Jiangsu, China. * Color: ...
      Nanjing Poclight Biotechnology Co., Ltd
    • Total Thyroxine (TT4) | myadlm.org
      Mar 17, 2021 — Total thyroxine (TT4) is a test that measures both bound and unbound thyroxine. It can help determine how well the thyroid is func...
      Association for Diagnostics & Laboratory Medicine (ADLM)
    • Total Thyroxine, Total T4 - CDC
      SUMMARY OF TEST PRINCIPLE AND CLINICAL RELEVANCE. The Access Total T4 assay is a competitive binding immunoenzymatic assay. A samp...
      Centers for Disease Control and Prevention | CDC (.gov)
    • Total Thyroxine (TT4) Test Kit (Fluorescence Immunoassay)
      The normal range for TT concentration is: * **Hyperthyroidism** TT concentration increases significantly * **TT concentration norm...
      Hipro Biotechnology Co.,Ltd
    • TSH with Reflex to Free T4 | Test Detail | Quest Diagnostics
      If TSH is abnormal (elevated or decreased) based on age/gender specific reference range, then a Free T4 will be performed at an ad...
      Quest Diagnostics
    • Total Thyroxine POCT Reagent Test - Poclight Biotechnology
      Poclightbio.com sells Total Thyroxine POCT Reagent Test at the ex-factory price.We are the best Total Thyroxine POCT Reagent Test ...
      www.poclightbio.com
    • 1.5.2.3.03700 说明书(国际飞测定量试剂T4)英文 转曲
      The Finecare™ T4 (Thyroxine) Rapid Quantitative Test along with Finecare™ FIA Meter is a fluorescence immunoassay for quantitative...
      www.bioline.cl
    • Veterinary total Thyroxine (cTT4/fTT4) Test Kit - Poclight Biotechnology
      Veterinary total Thyroxine (cTT4/fTT4) Test Kit * Order(MOQ): ... * Payment: FOB, EXW. * Product Origin: Jiangsu, China. * Color: ...
      Nanjing Poclight Biotechnology Co., Ltd
    • Total Thyroxine (TT4) | myadlm.org
      Mar 17, 2021 — Total thyroxine (TT4) is a test that measures both bound and unbound thyroxine. It can help determine how well the thyroid is func...
      Association for Diagnostics & Laboratory Medicine (ADLM)
    • Total Thyroxine, Total T4 - CDC
      SUMMARY OF TEST PRINCIPLE AND CLINICAL RELEVANCE. The Access Total T4 assay is a competitive binding immunoenzymatic assay. A samp...
      Centers for Disease Control and Prevention | CDC (.gov)
    Show all
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    Web results

    Total Thyroxine POCT Reagent Test


    Nanjing Poclight Biotechnology Co., Ltd
    https://www.poclightbio.com › total-thyroxine-poct-reag...
    Nanjing Poclight Biotechnology Co., Ltd
    https://www.poclightbio.com › total-thyroxine-poct-reag...
    Poclightbio.com sells Total Thyroxine POCT Reagent Test at the ex-factory price.We are the best Total Thyroxine POCT Reagent Test supplier.
    People also ask
    What is a normal thyroxine level?
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    Ask anything in AI Mode

    Explain free T4 vs total T4
    Tell me about TSH
    List factors affecting T4 levels
    How do I prepare for a TT4 blood test?
    In most cases, you don't need any special preparations for a T4 blood test. Certain medicines and supplements may affect your test results, so let your provider know what you're taking, but don't stop any medicines without talking with your provider.Dec 12, 2024

    Thyroxine (T4) Test: MedlinePlus Medical Test


    MedlinePlus (.gov)
    https://medlineplus.gov › Medical Tests
    MedlinePlus (.gov)
    https://medlineplus.gov › Medical Tests
    What is a thyroxine total test?
    An error has occurred. Please try again later.
    Does a TT4 test diagnose thyroid conditions?
    TT4 which includes measurement of both thyroxine that is bound to protein and thyroxine that is not bound to protein; Free T4 which is not bound to protein and is the active form that can enter various tissues and exert effects. Free T4 is regarded as the most accurate test to assess thyroid function.Mar 17, 2021

    Total Thyroxine (TT4) | myadlm.org


    Association for Diagnostics & Laboratory Medicine (ADLM)
    https://myadlm.org › advocacy-and-outreach › total-thy...
    Association for Diagnostics & Laboratory Medicine (ADLM)
    https://myadlm.org › advocacy-and-outreach › total-thy...

    Web results

    Evaluation of a point-of-care test for quantitative determination ...


    PubMed Central (PMC) (.gov)
    https://pmc.ncbi.nlm.nih.gov › articles › PMC11713976
    PubMed Central (PMC) (.gov)
    https://pmc.ncbi.nlm.nih.gov › articles › PMC11713976
    by E Spada · 2025 · Cited by 1 — Total thyroxine (TT4) evaluation is the most commonly used first-line test for the diagnosis and monitoring of cats with hyperthyroidism.

    T4FT4 - Overview: T4 (Thyroxine), Total and Free, Serum


    Mayo Clinic Laboratories
    https://www.mayocliniclabs.com › test-catalog › overview
    Mayo Clinic Laboratories
    https://www.mayocliniclabs.com › test-catalog › overview
    Useful for suggests clinical disorders or settings where the test may be helpful assessing thyroid function when thyroid function disorders are suspected.Read more

    Total Thyroxine (TT4)


    Association for Diagnostics & Laboratory Medicine (ADLM)
    https://myadlm.org › advocacy-and-outreach › total-thy...
    Association for Diagnostics & Laboratory Medicine (ADLM)
    https://myadlm.org › advocacy-and-outreach › total-thy...
    Mar 17, 2021 — The test informs how well the thyroid is functioning - euthyroidism, hypothyroidism or hyperthyroidism. There are two forms of thyroxine that can be measured.Read more

    Total Thyroxine (TT4) Test Kit (Fluorescence Immunoassay)


    Hipro Biotechnology Co.,Ltd
    https://www.hipro.us › ... › Hormone Test
    Hipro Biotechnology Co.,Ltd
    https://www.hipro.us › ... › Hormone Test
    This TT4 blood test kit is used for the quantitative determination of total triiodothyrine (TT4) in human serum, plasma, or whole blood in vitro.Read more

    Thyroxine (T4) Test


    MedlinePlus (.gov)
    https://medlineplus.gov › Medical Tests
    MedlinePlus (.gov)
    https://medlineplus.gov › Medical Tests
    Dec 12, 2024 — A T4 test measures the level of T4 in a sample of your blood. Too much or too little T4 may be a sign of a thyroid problem.Read more

    China Thyroid Function Test Manufacturers, Suppliers


    baysenrapidtest.com
    https://www.baysenrapidtest.com › poct › poct-reagent
    baysenrapidtest.com
    https://www.baysenrapidtest.com › poct › poct-reagent
    This kit is intended for in vitro quantitative detection on the thyroid-stimulating hormone (TSH) existing in the human serum/plasma/whole blood samples.Read more
    Total Thyroxine POCT Reagent Test from www.baysenrapidtest.com

    Total Thyroxine (T4) Kit - VACURE


    VACURE
    https://www.vacurebiotech.com › ... › Thyroid POCT
    VACURE
    https://www.vacurebiotech.com › ... › Thyroid POCT
    This device is intended to be used for the in vitro quantitative determination of total thyroxine (TT4) in human whole blood, serum or plasma.Read more
    Total Thyroxine POCT Reagent Test from www.vacurebiotech.com

    (PDF) Evaluation of a point-of-care test for quantitative ...


    ResearchGate
    https://www.researchgate.net › publication › 38785859...
    ResearchGate
    https://www.researchgate.net › publication › 38785859...
    Objectives Total thyroxine (TT4) evaluation is the most commonly used first-line test for the diagnosis and monitoring of cats with hyperthyroidism.Read more

    Total Thyroxine, Total T4


    Centers for Disease Control and Prevention | CDC (.gov)
    https://wwwn.cdc.gov › data › public › labmethods
    Centers for Disease Control and Prevention | CDC (.gov)
    https://wwwn.cdc.gov › data › public › labmethods
    PDF
    An active calibration curve is required for all tests. For the Access total T4 assay, calibration is required every 21 days or whenever new lot numbers of ...Read more
    Missing: POCT ‎| Show results with: POCT
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