Effects of coagulation factor concentrate (Fibrinogen or Fibrinogen with factor XIII (FXIII)) at two different temperatures (33° vs. 37 C) during haemodilution with Ringer’s acetate (RAc) or hydroxyethyl starch (HES). ROTEM parameters shown are EXTEM-MCF, FIBTEM-MCF and EX-FIBTEM-MCF; the latter calculated as FIBTEM-MCF subtracted from EXTEM-MCF. Statistically significant differences are marked with brackets. All significances are P < 0.001, except where elsewise stated; +: P < 0.05, ++: P < 0.01. Data are presented as mean values, error bars are 95% simultaneous confidence intervals. N = 10.