A patient with kidney disease and diabetes is taking hydralazine, chlorthalidone, lisinopril, and amlodipine. Which of the following lab results would be associated with the use of chlorthalidone?
a. K+ = 5.7 mEq/L
b. Na+ = 142 mEq/L
c. Calcium = 11.5 mg/dL
d. Glucose = 68 mg/dL