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Table 1 Thyroid function tests of 22-year old male prior to L-T4 test

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) Free triiodothyronine (FT3) (pg/ml) Reference range (pg/ml)
06.01 <0.005a 0.27–4.2 1.21a 0.93–1.7 7.35 2.6–4.4
18.03 - 0.27–4.2 2.11 0.93–1.7 9.28 2.6–4.4
10.05 - 0.27–4.2 0.583a 0.93–1.7 3.98 2.6–4.4
17.06a 80.74 0.27–4.2 - 0.93–1.7 - 2.6–4.4
06.09 15.77 0.27–4.2 1.74 0.93–1.7 - 2.6–4.4
23.09 19.22 0.27–4.2 - 0.93–1.7 - 2.6–4.4
03.11 27.84 0.27–4.2 1.42 0.93–1.7 - 2.6–4.4
10.11 14.53 0.27–4.2 1.93 0.93–1.7 3.99 2.6–4.4
  1. aresults after thyroidectomy in June 2010