NPPB and Shock: In cardiogenic shock, circulating BAs correlated significantly with arterial serum lactate (GC: r 0.31, p < 0.005) and pro-BNP levels (TC: r 0.62, p < 0.05; GCDC: r 0.66, p = 0.005; GUDC: r 0.683, p < 005; CL: r 0.58, p < 0.05; TBA: r 0.59, p < 0.05).