NPPB and congestive heart failure: From the study strengths, limitations and main findings expounded in Additional file3: Appendix 3, the main message being alluded to is that (at least for this study) our results largely supported the quoted cut-off values advocated for BNP and NT-proBNP to ‘rule out’ CHF but not to ‘rule in’ CHF whereby dramatically higher cut-off values for BNP ~5780pmol/L (20,000ng/L) and NT-proBNP ~11,800pmol/L (100,000ng/L) will apparently be required.