NPPB and heart failure: For example, in the case of SOB, we can determine pH, D-dimer, proBNP, troponin, blood gases, X-ray, and ultrasound using POCT, allowing us to identify the cause of SOB, whether it be ACS, pulmonary embolism, heart failure, acidosis, or chest infection, and start supportive treatment as early as possible [1,5,6,8,12,15,16,30,42].