NPPB and hydrops fetalis: In the UK, natriuretic peptide (NP), a collective term for B-type natriuretic peptide (BNP) and N terminal pro-B type natriuretic peptide (NT-proBNP), levels are currently used as part of the diagnostic pathway for HF and have been shown to correlate with poor prognosis.2 Patients with established HF receive much of their care in the community, either in primary care or through specialist community HF nurses.