NPPB and hydrops fetalis: The anamnesis, electrocardiography (ECG), chest radiography, electrolyte levels, liver/kidney function test values, troponin, arterial blood gas, complete blood count results, Echocardiography (ECO) results and B-type natriuretic peptide (BNP) or N-terminal pro-evaluation together with B-type natriuretic peptide (NT-proBNP) levels of patients are recommended to be checked in diagnosing HF (McDonagh et al., 2021).