Abstract P71  Table 3: blood gases before and 1 hour after NIV for non-surviving COPD admissions (mean SD)
Pre NIV1 hour post NIV
pH7.23 (0.08)7.29 (0.07)
CO2 (kPa)10.4 (2.6)8.7 (1.8)
O2 (kPa)9.7 (3.3)10.2 (3.8)