Tested for Calculated Total CO2 in Blood
Normal range: 21.0 - 30.0 mEq/L
Day 4122: 22.0 
Day 4303: 24.0 
Day 4528: 24.0 
Day 4534: 20.0 

Tested for Calculated Total CO2 in Blood
Trend is decreasing
Abnormality: 
Low values on days 4534
