Total Thyroxine (Total T4)

CID 5819. Source: PubChem. For illustration purposes only.

VeriLumenTM Total T4

The VeriLumenTM Total T4 Rapid Test is a fluorescence immunochromatographic assay for the quantitative measurement of total thyroxine (Total T4) in human whole blood, plasma, or serum samples. Total T4 is a key thyroid hormone involved in regulating metabolism, growth, and energy balance, and its concentration is widely used in the clinical assessment of thyroid function. The assay provides rapid quantitative results to support timely clinical evaluation in laboratory and point-of-care settings.

This test is mainly used in the clinical evaluation of thyroid function, supporting assessment of patients with suspected hypo- or hyperthyroidism. Quantitative Total T4 measurement supports clinical decision-making when interpreted together with clinical findings and other thyroid function tests, helping to evaluate hormonal imbalance and treatment response.

Ref. Code 808176
Analyte Total Thyroxine (Total T4)
Format Fluorescence lateral flow immunoassay (cassette format)
Diagnostic Readout Quantitative
Time to Result 10 minutes
Measuring Range 9–310 nmol/L
Reference Value 66–181 nmol/L (5.1–14 µg/dL)
R2 ≥ 0.95
Storage Conditions 2–30°C
Shelf Life 18 months
Certificate CE
Sample Types Human whole blood, plasma or serum
Sample Volume 100μL
Collection Method Venous blood
Sample Stability Stable for testing within X hours at room temperature (as validated)
Acceptable Anticoagulants EDTA / Heparin / Citrate (as applicable)
Notes on Handling Specimens should be collected and handled using standard laboratory procedures. Use fresh samples when possible and avoid hemolyzed, lipemic, or contaminated specimens.
Detection Method Quantitative fluorescence immunochromatography
Antibody Format Monoclonal / competitive
Signal Generation Fluorescence signal (fluorescent-labeled immunochromatography)
Reading Method Instrument-based
Mechanism The assay is based on a fluorescence immunochromatographic competitive principle, in which total thyroxine (Total T4) present in the sample competes with immobilized T4 analogs at the test region for binding to specific fluorescently labeled anti-T4 antibodies during capillary migration along the membrane. As the Total T4 concentration in the sample increases, fewer labeled antibodies bind at the test region, resulting in a fluorescence signal that is inversely proportional to the Total T4 concentration in the specimen.
Tests per Kit 10/25/50 Tests
Dimension of Kit Box 21 × 13.5 × 8 cm
Kits per Carton 48 Kits
Tests per Carton (Bulk) 1200 Tests
G.W. per Carton (Boxed) 23.2 kg
G.W. per Carton (Bulk) 26.2 kg
Carton Dimension 67 × 57.5 × 39 cm
Carton Volume 0.15 CBM
Packaging Format Individual sealed test kits / bulk configuration (as applicable)
Items Included - Test cassette
- Desiccant
- Sample diluent
- ID chip
- Instructions for Use
Storage & Shipping Conditions Standard ambient transport; store according to product label requirements

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