When doing tests (pituitary test), many medics check the levels of the TSH without confirming viability of the thyroid. If everything is normal and the thyroid is underactive, one consequently should have elevated TSH levels. In people with Hashimoto’s, antibodies can be detected long before TSH levels rise. However, in central hypothyroidism, TSH is depressed thus masking the events in the thyroid giving inaccurate results.
Thyroid tests are not always precise. In some days when thyroid cells are breaking down, TSH levels are high. There can also be periods when TSH is normal or negligible.
In recent times, the TSH range has been standardized. In olden days, the range was approximated not keeping into account that as age progresses, thyroid activity also decreases while some people perceived to be healthy had thyroid malfunctions. This brought the need to have clear-cut ranges that suits everyone.
When someone is healthy, it is expected that their thyroid hormone levels should be between 1 and 2.0. Sick people with thyroid disorders have an elevated reading reaching up to 4. From extensive research, it has come to be accepted that the safest zones should be not lower than 0.5 or higher than 2. Some people may have healthy ranges reaching up to 8 or 9.
When getting tested, one should consider undergoing all tests and not just TSH testing. The TSH test cannot be used to rule out whether someone has an autoimmune attack on their thyroid.
If the body makes immunoglobulin against the thyroid, a person’s immune system will identify their thyroid as an invader and try to get rid of it. It is important they also get checked for antibody activity hostile to their thyroid. In Hashimoto’s, thyroid peroxidase antibodies and thyroglobulin are the most vital antibodies to note.