Tested for Thyroxine (T4), Free in Blood
Normal range: 0.93 - 1.7 ng/dL
Day 233: 1.2 
Day 290: 0.97 
Day 339: 1.1 
Day 640: 1.1 
Day 1144: 0.9 
Day 1389: 1.0 
Day 1886: 1.1 

Tested for Thyroxine (T4), Free in Blood
Trend is decreasing
Abnormality: 
Low values on days 1144
