When presented with a vignette of an older male person already diagnosed with COPD who has a subfebrile temperature after a period of fever, GPSI-CVD were also more inclined to order ECG (36% vs 12%, p = 0.003), but now also (NT-pro)BNP (56% vs 33%, p = 0.026) compared to other GPs, as recommended in HF guidelines. Here, NPPB is linked to hydrops fetalis.