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Thyrotropin-releasing hormone stimulation test.
| Time (minutes) | TSH (mIU/L) | Free T4 (pmol/L) |
|---|---|---|
| 0 | 8.74 | 17 |
| 20 | 49.2 | |
| 30 | 43.2 | |
| 60 | 19.6 |
This TRH stimulation test shows an elevated TSH at baseline, with a corresponding normal T4 level, which outrules a TSH resistance. The brisk TSH response outrules thyroid Hormone releasing hormone (THRH) resistance.
