Tested for Thyroxine (T4), Free in Blood
Normal range: 0.93 - 1.7 ng/dL
Day 1618: 1.0 
Day 1626: 0.9 
Day 1667: 1.1 
Day 1670: 1.1 
Day 1684: 1.1 
Day 1704: 1.0 
Day 1723: 1.4 
Day 1754: 1.2 
Day 1761: 1.3 
Day 1783: 1.4 

Tested for Thyroxine (T4), Free in Blood
Trend is increasing
Abnormality: 
Low values on days 1626
