Table 1.

Laboratory values for first admission.

Laboratory parameter	Day 1	Day 2	Day 3	Day 3
Potassium (K+)	3.7 mEq/l	6.2 mEq/l	5.9 mEq/l	3.8 mEq/l
Serum creatinine	1.50 mg/dL	3.40 mg/dL	3.60 mg/dL	3 mg/dL
Blood urea nitrogen	23 mg/dL	40 mg/dL	65 mg/dL	105 mg/dL