Format of TSH Report in Medical

THYROID STIMULATING HORMONE [TSH] 

     Note: - (Patient on thyroidal drugs or iodine or certain other drugs or having   non – thyroidal Illness may show aberrant test results. Please exclude these conditions, or a free T3 and T4 assay may   be done.)

NOTE:

1.        Patients having low T3 and T4 levels but high TSH levels may suffer from primary hypothyroidism, cretinism, juvenile myxoedema or autoimmune discords.

2.        Patients having high T3 and T4 levels but low TSH levels may suffer from Graves disease, toxic adenoma or sub – acute thyroidits.

3.        Patients having either low or normal T3 and T4 levels but low TSH values may suffer from iodine deficiency or secondary hypothyroidism.

4.        Patients having high T3 and T4 levels but normal TSH levels may suffer from toxic multinodular goiter. This condition is mostly asymptomatic and may cause transient hypothyroidism but no persistent symptoms.

5.        Patient with high or normal T3 and T4 levels and low or normal TSH levels suffer either from T3 and T4 toxicosis respectively.

6.        In patients with non thyroidal illness abnormal test results are not necessarily indicative of thyroidism but may be due to adaptation to the catabolic.

          may revert to normal when the patients recovers.

7.        There are many drugs eg. Glucocorticoids, Dopamine, Lithium, Iodides, oral radiographic dyes, etc. which may affect the thyroid functions tests.

8.        Generally when total T3 and T4 results are indecisive then free T3 and free T4 tests are recommended for further confirmations along with TSH levels.

9.        Low T4 levels can occur in both premature infants and those with congenital deficiency of thyroxine-binding globul in.

10.     Elevated TSH results can be seen in premature or severely stressed infants.