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Table 4 1000 μg L-T4 test in Patient II

From: A single bolus of high dose levothyroxine (L-T4) as a test in cases of suspected poor compliance to L-T4 therapy

Date TSH (μIU/ml) Reference range (μIU/ml) FT4 (ng/dl) Reference range (ng/dl) FT3 (pg/ml) Reference range (pg/ml)
Day 0 >100 0.27–4.2 1.13 0.93–1.7 2.01 2.6–4.4
Day 0a (6.00 PM) 37.91 0.27–4.2 2.72 0.93–1.7 2.10 2.6–4.4
Day 1 25.54 0.27–4.2 1.99 0.93–1.7 2.96 2.6–4.4
Day 2 10.37 0.27–4.2 1.82 0.93–1.7 3.22 2.6–4.4
Day 3 7.82 0.27–4.2 1.58 0.93–1.7 3.09 2.6–4.4
  1. areceived 1000 μg of L-T4 (Euthyrox N®) as a single fasting dose