Is thyroid stimulating hormone 1.22 normal

Thyroid stimulating hormone 1.22 mIU/L is generally within the normal range. The normal value of thyroid stimulating hormone TSH is usually 0.27-4.2mIU/L, and specific judgment needs to be combined with laboratory reference range, other indicators of thyroid function such as FT3, FT4, and comprehensive analysis of individual symptoms.

1. Laboratory reference range:

Different medical institutions may use different detection methods or reagents, and the TSH reference range may fluctuate slightly. Some laboratories set the normal upper limit at 4.2mIU/L, while the reference standard for pregnant women or certain special populations may be lower. It is recommended to directly compare the reference interval marked in the testing report for judgment.

2. Thyroid function related indicators:

TSH values alone cannot fully reflect thyroid status. Simultaneous assessment of free triiodothyronine FT3 and free thyroxine FT4 levels is required. If TSH 1.22mIU/L is accompanied by abnormal FT3/FT4, it may indicate subclinical thyroid disease and further investigation is needed.

3. Individual symptom assessment:

When there are no thyroid related symptoms such as fear of cold, fatigue, palpitations, or hand tremors, TSH 1.22mIU/L usually does not require intervention. But if there are obvious symptoms such as thyroid enlargement, sudden weight changes, or emotional abnormalities, even if TSH is within the normal range, it is recommended to improve thyroid antibody TPOAb and TGAb testing.

4. Special physiological state: In early pregnancy, due to HCG stimulation, the normal upper limit of TSH may be lowered to 2.5mIU/L. The TSH level in elderly people is often mildly elevated, with 1.22 mIU/L being mostly normal. Long term use of lithium supplements or medications such as amiodarone requires stricter monitoring of TSH fluctuations.

5. Dynamic monitoring suggestion:

For patients without clinical symptoms and with normal other indicators, thyroid function can be rechecked every 6-12 months. Pregnant women with a history of thyroid disease or autoimmune diseases are recommended to shorten the follow-up interval to 3-6 months, with a focus on monitoring TSH trends. Maintaining a balanced diet is crucial for maintaining thyroid function. Moderate intake of iodine containing foods such as kelp and seaweed should be avoided, but excessive intake should be avoided; Selenium can be supplemented through nuts and fish, which helps with thyroid hormone metabolism. Regular sleep and moderate exercise can improve endocrine regulation. It is recommended to engage in 150 minutes of moderate intensity aerobic exercise per week. Smokers should quit smoking as early as possible to reduce the risk of thyroid tissue damage and avoid long-term exposure to ionizing radiation or environmental endocrine disruptors. When experiencing sustained fatigue, dry skin, or unexplained weight changes, it is necessary to seek medical attention promptly for a follow-up examination of thyroid function.