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Table 3 Changes in systemic arterial pH, pCO 2 , bicarbonate (HCO 3 ) from the beginning ( t= 0 hours), 4 hours ( t= 4 hours), and 24 hours ( t= 24 hours) after starting low-flow CO 2 removal

From: Low-flow CO2removal integrated into a renal-replacement circuit can reduce acidosis and decrease vasopressor requirements

No. Art. pH Art. pCO2 Art. HCO3
  t = 0 t = 4 hours ΔpH t = 0 t = 4 hours ΔpCO2 t = 0 t = 4 hours ΔHCO3
1 7.17 7.25 0.08 58 47 −11 20 20 0
2 7.24 7.28 0.04 56 51 −5 22 24 2
3 7.10 7.29 0.19 77 49 −28 23 23 0
4 7.18 7.34 0.16 69 52 −17 25 27 2
5 7.24 7.21a −0.03 88 90a 2 37 34a −3
6 7.07 7.18 0.11 77 57 −20 20 19 −1
7 7.37 7.44 0.07 55 44 −11 31 30 −1
8 7.16 7.24 0.09 66 55 −11 23 23 0
9 7.18 7.31 0.13 79 55 −24 29 27 −2
10 7.18 7.37 0.19 65 36 −29 23 21 −2
Mean 7.18 7.30 0.12 69.00 49.56 −17.3 25.3 23.78 −0.22
  1. Deltas indicate differences between t = 0 and t = 4 hours. Patient 5 was switched to ECMO after 2.5 hours of treatment and was therefore excluded from calculation of means and deltas at t = 4 hours. at = 2.5 hours.