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Table 2 1000 μg L-T4 test in Patient I

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 0a

18.92

0.27–4.2

1.54

0.93–1.7

3.06

2.6–4.4

Day 1

8.79

0.27–4.2

4.32

0.93–1.7

4.69

2.6–4.4

Day 2

6.87

0.27–4.2

3.36

0.93–1.7

4.69

2.6–4.4

Day 3

2.34

0.27–4.2

2.58

0.93–1.7

4.26

2.6–4.4

Day 4

1.40

0.27–4.2

2.22

0.93–1.7

3.84

2.6–4.4

Day 5

1.16

0.27–4.2

1.82

0.93–1.7

4.93

2.6–4.4

Day 6

2.76

0.27–4.2

1.65

0.93–1.7

3.45

2.6–4.4

  1. areceived 1000 μg of L-T4 (Euthyrox N®) as a single fasting dose
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Thyroid Research

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