Individual course of arterial blood gas analysis during transfer by ambulance (2005) and MICU (2009). a. Differences in saturation (expressed as percent), P = 0.16*. b. Differences in pH (expressed as mmol/L), P = 0.02*. c. Differences in pO2 (expressed as kPa), P = 0.00*. d. Differences in pCO2 (expressed as kPa), P = 0.02*. * by independent-samples.