The Biotime TSH/TT3/TT4Rapid Quantitative Testis intended to quantitatively detect theconcentration of thyroid stimulating hormone (TSH),total triiodothyronine (TT3) and total thyroxine (TT4) in human serum and plasma samples on Biotime FIA Analyzer byfluorescent immunoassay. The test is used as an aiddiagnosis of thyroiddisease.
For in vitro diagnostic use only. For professional use only.
|
Specimen Types |
Serum/Plasma |
|
Sample |
Serum/Plasma:50μL |
|
Reaction Time |
15 min |
|
Reference Interval |
TSH: 0.29-4.16mIU/L |
|
TT3: 1.35-3.07nmol/L |
|
|
TT4: 65.82-182.07nmol/L |
Clinical Significance:
1. Assessment of Thyroid Function
The thyroid gland is essential for normal growth, development, and metabolism.
Both excess and deficiency of thyroid hormone secretion impair the normal function of tissues and organs.
Measuring T3, T4, and TSH levels provides a direct assessment of thyroid functional status.
2. Negative Feedback Regulation
TSH regulates thyroid hormone secretion through a negative feedback mechanism.
When thyroid function changes, T3, T4, and TSH levels change significantly, reflecting the dynamic balance of the hypothalamic‑pituitary‑thyroid axis.
3. Diagnostic Value for Thyroid Diseases
Detection of T3, T4, and TSH is clinically valuable for:
Improving diagnostic accuracy of thyroid diseases (e.g., hyperthyroidism, hypothyroidism).
Evaluating disease severity and guiding treatment decisions.
Improving patient prognosis through timely and appropriate intervention.
4. Practical Utility
Reasonable analysis of test results helps clinicians distinguish between primary and secondary thyroid disorders, even though the text focuses on the general relationship.
The combination of T3/T4 (hormones) and TSH (regulator) offers a comprehensive view of thyroid status.
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