Laboratory results showed a high proBNP of 54,420 pg/mL (normal < 100pg/mL), a low troponin of 0.03 μg/L (normal < 0.034 μg/L), normochromic normocytic anemia at 10.4 g/dL, positive direct Coombs, lymphopenia at 460/mm3, thrombocytopenia at 104 G/L, serum creatinine at 23.9 mg/L, and proteinuria/creatininuria at 2.48 g/g. Here, NPPB is linked to lymphopenia.