Ghrair F, et al. – This study was designed to assess the utility of worsening blood urea nitrogen (BUN) and Creatinine (Cr) levels as determinants of prognostic outcomes among hospitalized patients with acute heart failure syndrome and normal baseline kidney function. Findings demonstrated that in these subjects, worsening BUN ≥22 mg/dL and Cr ≥1.5 mg/dL could aid in predicting the length of stay and 30–day readmission rate, respectively.