Tested for Thyroxine (T4), Free in Blood
Normal range: 0.93 - 1.7 ng/dL
Day 1: 1.2 
Day 281: 1.2 
Day 315: 1.1 
Day 372: 0.96 
Day 643: 1.1 
Day 1312: 1.0 
Day 1679: 0.9 

Tested for Thyroxine (T4), Free in Blood
Trend is decreasing
Abnormality: 
Low values on days 1679
