NPPB and Jaundice: This study compared N-terminal pro b-type natriuretic peptide (NT-proBNP), high sensitivity troponin I (hs-TnI), creatine kinase (CK), and its isoenzyme creatine kinase-myocardial band (CK-MB) concentrations and activities, measured within the first 24 hours (h) postpartum, between the healthy term neonates and those with jaundice, perinatal infection, transient neurological abnormalities (TNA), and heart ultrasound abnormalities.