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Doctor insights on: Causes Of False Tsh Levels

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Dr. Quang Nguyen
876 doctors shared insights

Thyroid Stimulating Hormone (Definition)

A TSH test measures the amount of thyroid stimulating hormone (TSH) in your blood. TSH is produced by the pituitary gland and tells the thyroid gland to make and release the hormones thyroxine ...Read more


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What would cause TSH at 8 go down to a normal level a week and a half later withouth meds?

What would cause TSH at 8 go down to a normal level a week and a half later withouth meds?

Error in testing: It is possible that one of the test results is in error. It would be prudent to discuss it with the doctor who ordered the tests. ...Read more

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What causes TSH level to go up and down?

What causes TSH level to go up and down?

Variations: In your level of thyroid hormone. Tsh is secreted in spurts, and sometimes the lab test can detect a peak one time and a valley the next, but it's usually a fairly reliable indicator. ...Read more

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What causes TSH level to go up and down without medication?

Thyroid inflammation: Can cause variable TSH results. Tsh tests are very sensitive but often not real reproducible. Levels vary by time of day. Tsh is secreted in spurts and may vary depending upon when it's drawn. Plus some labs are better and more reliable than others. ...Read more

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What can cause a false high tsh?

What can cause a false high tsh?

Not much: Any lab can have a temporary problems doing any test accurately. That is why an abnormal level should always be repeated to verify it. There are temporary causes for high TSH (resolving subacute thyroiditis), so that a 2nd TSH level done a few weeks after an abnormal one, could be normal. Subclinical hypothyroidism will have a high TSH with other thyroid levels normal, no symptoms. ...Read more

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Could rhodiola cause low TSH levels?

Could rhodiola cause low TSH levels?

Unlikely but...: Rhodiola is known to improve thyroid function and thus might be expected to reduce TSH levels somewhat (though more research on this is needed). However, a low TSH tends to be a sign of hyperthyroidism and, as far as i know, rhodiola is not known to stimulate the thyroid to the point of hyperthyroidism. ...Read more

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Sudden increase in TSH levels from 2.5 six months ago to 7.8 now. No meds or family history. No prior levels above 2.5 ever. Feel ok and ttc. Cause?

If your tsh: Is that elevated upon repeat morning testing, then you have early hypothyroidism, and need brand name T4 replacement until your levels are normalized. Check w/your doctor. ...Read more

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Is it possible to get a false positive TSH test result caused by stress if your TSH was 11.13?

Is it possible to get a false positive TSH test result caused by stress if your TSH was 11.13?

Complex: Hi. It's unlikely "stress" can give a false positive TSH elevation, but "stress" comes in multiple flavors. If a person is severely ill (usually ICU-tpye ill or at least hospitalized), an adaptive response (unfortunately) called "euthyroid sick syndrome" can show a TSH elevation in that range during a phase of the condition. Only in a case like that. Stress like a final exam next week? No. ...Read more

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