NPPB and acute kidney injury: Laboratory workup revealed elevated high-sensitivity troponin levels of 312.4 pg/mL (normal range: <5.0-11.8 pg/mL), a brain natriuretic peptide (BNP) of 217 pg/mL (normal value: <100 pg/mL), and acute kidney injury creatinine of 1.8 mg/dL (normal range: 0.6-1.1 mg/dL).