Skip to main content

Table 1 Arterial blood gas changes during blood withdrawal and transfusion

From: Monitoring the tissue perfusion during hemorrhagic shock and resuscitation: tissue-to-arterial carbon dioxide partial pressure gradient in a pig model

  Status of circulating blood volume
  BL BW10 BW20 BW30 BT10 BT20 BT30
pH 7.51 ± 0.05 7.54 ± 0.04 7.50 ± 0.03 7.52 ± 0.08 7.46 ± 0.05 7.45 ± 0.05 7.43 ± 0.07*
artPCO2, mmHg 46.3 ± 6.1 44.6 ± 4.5 44.6 ± 5.0 40.6 ± 10.6 49.0 ± 4.6 50.0 ± 5.8 55.0 ± 10.3
artPO2, mmHg 267.3 ± 8.3 267.3 ± 6.2 275.2 ± 30.3 268.0 ± 18.1 246.2 ± 14.3* 248.3 ± 17.1 218.3 ± 42.5a
HCO3, mmol/L 36.8 ± 1.8 37.0 ± 2.0 35.1 ± 1.6 34.4 ± 2.0 35.0 ± 3.2 34.6 ± 1.9* 36.3 ± 3.2
BE, mmol/L 12.4 ± 2.1 13.0 ± 1.9 11 ± 1.0 10.7 ± 2.9 10.1 ± 3.5 9.6 ± 2.4 10.7 ± 3.3
  1. BL, Baseline; BW10, 10 mL/kg of blood withdrawal; BW20, 20 mL/kg of blood withdrawal; BW30, 30 mL/kg of blood withdrawal; BT10, 10 mL/kg of blood transfusion; BT20, 20 mL/kg of blood transfusion; BT30, 30 mL/kg of blood transfusion; pH, arterial pH; artPCO2, partial pressure of arterial carbon dioxide; artPO2, partial pressure of arterial oxygen; HCO3, arterial bicarbonate; BE, arterial base excess
  2. *P < 0.05, aP < 0.01 vs. baseline