Tested for Calculated Total CO2 in Blood
Normal range: 21.0 - 30.0 mEq/L
Day 423: 30.0 
Day 424: 28.0 
Day 424: 28.0 
Day 712: 17.0 

Tested for Calculated Total CO2 in Blood
Trend is decreasing
Abnormality: 
Low values on days 712
