Is 8.79 high TSH

Yes, a TSH level of 8.79 is considered high and may indicate hypothyroidism, where the thyroid gland is underactive. Normal TSH levels typically range from about 0.4 to 4.0 mIU/L, although reference ranges can vary slightly by laboratory. If you have a TSH level this high, it’s important to consult a healthcare professional for further evaluation and possible treatment.