Thyroid Function Test (TFT) Report Format

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Tests included in TFT report:

Serum Triiodothyronine T3

Serum thyroxine T4

Thyroid-Stimulating Hormone TSH

TFT Interpretation

In Labsmart software, this is the inbuilt interpretation for Thyroid Function Test (TFT)

Physiologic Basis
Total T4 is a measure of thyroid gland secretion of T4, bound and free, and thus is influenced by levels of thyroid hormone binding proteins. Only free T4 is biologically active.
TSH is an anterior pituitary hormone that stimulates the thyroid gland to produce thyroid hormones. Secretion is stimulated by thyrotropin releasing hormones from the hypothalamus. There is negative feedback on TSH secretion by circulating thyroid hormone.
T3 is the primary active thyroid hormone. Approximately 80% of T3 is produced by extrathyroidal deiodination of T4 and the rest by thyroid gland. Total T3 is influenced by levels of thyroxine binding proteins.

Patterns of Thyroid Function Tests in Patients with Thyroid Disease

Type of disease	T4	T3	TSH
Conventional hyperthyroidism (95%)	Raised	Raised	Undetectable
T3 hyperthyroidism (5%)	Normal	Raised	Undetectable
Subclinical hyperthyroidism	Normal	Normal	Undetectable
Primary hypothyroidism	Low	Not indicated	Raised
Subclinical hypothyroidism	Normal	Not indicated	Raised
Secondary hypothyroidism	Low	Not indicated	Undetectable

All inbuilt interpretations in the Labsmart pathology software is made in consultation with a doctor and is © copyright of Labsmart Healthcare Technologies.

Importance of adding interpretation to reports:

It's very helpful to add interpretation in reports as it makes the reports more patient friendly and also helpful to doctors in some cases. Moreover, presently most labs prefer providing reports with interpretation. Thus, adding interpretation to report will help your lab stay at par with other competitor labs.