Generally, healthy TSH levels are an indicator the whole system is working well, but that’s an oversimplification at best. A normal T3 level might be somewhere between 100 to 200 nanograms per deciliter (ng/dL), while a normal T4 level falls between 5.0 to 12.0 micrograms per deciliter (μg/dL).
Correspondingly, how do I read my thyroid test results?
A normal TSH and normal T4 show a normal thyroid. A low TSH and high T4 generally means an overactive thyroid. A high TSH and low T4 means an underactive thyroid. A low TSH and low T4 mean low thyroid function because of another problem, such as with the pituitary gland or hypothalamus of the brain.
Moreover, what are early warning signs of thyroid problems?
7 Early Warning Signs of Thyroid Issues
- Fatigue.
- Weight gain.
- Weight loss.
- Slowed heart rate.
- Increased heart rate.
- Sensitivity to heat.
- Sensitivity to cold.
What is a dangerously high TSH level?
Experts don’t agree on which TSH levels should be considered too high. Some suggest that TSH levels of over 2.5 milliunits per liter (mU/L) are abnormal, while others consider levels of TSH to be too high only after they have reached 4 to 5 mU/L.
What is a good thyroid level?
The normal range of TSH levels in adults is between 0.4 to 4.0 mIU/L (milli-international units per liter). Some research suggests that this range should actually be more like 0.45 to 2.5 mIU/L.
What is a good TSH level for a woman?
The normal range of TSH levels in non-pregnant adult women is 0.5 to 5.0 mIU/L.
What is normal TSH level for age?
| Age | Free T4* (ng/dL) | TSH (mU/L) |
|---|---|---|
| 1 to 12 months | 0.9 to 2.3 | 0.6 to 7.3 |
| 1 to 5 years | 0.8 to 1.8 | 0.7 to 6.6 |
| 6 to 10 years | 1.0 to 2.1 | 0.8 to 6.0 |
| 11 to 18 years | 0.8 to 1.9 | 0.6 to 5.8 |
What is the normal range of thyroid in female?
Low TSH levels usually mean that you’re producing too much thyroid hormone.
| Age range | Normal | Low |
|---|---|---|
| 18–30 years | 0.5–4.1 mU/L | < 0.5 mU/L |
| 31–50 years | 0.5–4.1 mU/L | < 0.5 mU/L |
| 51–70 years | 0.5–4.5 mU/L | < 0.5 mU/L |
| 71–90 years | 0.4–5.2 mU/L | < 0.4 mU/L |
What should your TSH level be with no thyroid?
TSH normal values are 0.5 to 5.0 mIU/L. Pregnancy, a history of thyroid cancer, history of pituitary gland disease, and older age are some situations when TSH is optimally maintained in different range as guided by an endocrinologist. FT4 normal values are 0.7 to 1.9ng/dL.
When T3 and T4 are normal but TSH is high?
Normally, low levels (less than 5 units) of TSH are sufficient to keep the normal thyroid gland functioning properly. When the thyroid gland becomes inefficient such as in early hypothyroidism, the TSH becomes elevated even though the T4 and T3 may still be within the “normal” range.