Skip to main content

Table 1 Initial results in the 59-year old female patient before and during treatment with L-T 4

From: Case report: When measured free T4 and free T3 may be misleading. Interference with free thyroid hormones measurements on Roche® and Siemens® platforms

Date

TSH

FT 4

FT 3

L-T 4dose

Reference Range

Initial results

>100

-

-

none

TSH 0.27-4.0 μIU/ml (Siemens®)

     

FT4 0.8-1.9 ng/ml (Siemens®)

     

FT3 1.5-4.1 pg/ml (Siemens®)

13-14 weeks

12.74

6.8

6.7

75 μg

 

16 weeks

77.76

2.1

4.0

None for two weeks

 

Seven months

49.23

3.1

4.5

50 μg

 

Twelve months

8.41

4.8

5.6

88 μg