Figure 1.

Serum Potassium Values from July 2006 through May 2008. Note normalization of serum potassium levels during hospitalizations in 7/06, 1/07, and 7/07. Also note improvement in potassium level from 3.0 to 3.5 mg/dL between 5/1/08 and 5/16/08, when the patient decreased his cola consumption from 4 liters to 2 liters per day.