Figure 2: Serum creatinine and albumin/creatinine ratio throughout the hospitalization and post-hospitalization follow-up. Progression of serum creatinine and albumin/creatinine ratio from first day of hospitalization to current follow-up. The start of prednisone is marked. * Indicates the day of lithium discontinuation.   indicates albumin/creatinine levels. • Indicates serum creatinine levels