Tested for Calculated Total CO2 in Blood
Normal range: 21.0 - 30.0 mEq/L
Day 1171: 19.0 
Day 1172: 22.0 
Day 1636: 28.0 
Day 1637: 25.0 
Day 2678: 19.0 
Day 2679: 23.0 
Day 2679: 23.0 
Day 2835: 25.0 

Tested for Calculated Total CO2 in Blood
Trend is increasing
Abnormality: 
Low values on days 1171, 2678
