Table 1. Test results.
| 11/3/2015 off biotin | 5/19/2016 on biotin | 6/1/2016 on biotin | 6/7/2016 off biotin | Reference range | |
| TSH | 2.20 | 0.08 | 0.02 | 2.00 | 0.27-4.20 uIU/ml |
| Free T4 | 1.4 | 3.2 | 7.8 | 1.3 | 0.9-1.8 ng/dl |
| Free T3 | 2.80 | 3.92 | 7.38 | 3.05 | 1.80-4.60 pg/ml |
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