Table 1 Arterial and venous blood gas analysis immediately post-surgery, three hours post-surgery and 18 hours after surgery
From: Analgesic management of an eight-year-old Springer Spaniel after amputation of a thoracic limb
Parameters measured | Immediately after surgery (arterial blood) | Reference range arterial blood for dogs [13] | Three hours after surgery (venous blood) | Reference range venous blood for dogs [21] | Eighteen hours after surgery (arterial blood) | Reference range arterial blood for dogs [13] |
|---|---|---|---|---|---|---|
pH | 7.203 | 7.38 - 7.44 | 7.374 | 7.33 - 7.38 | 7.383 | 7.38 - 7.435 |
PCO2 (kPa) | 8.65 | 4.51 - 5.31 | 5.04 | 5.03 - 6.20 | 5.53 | 4.51 - 5.31 |
PO2 (kPa) | 15.89 | 11.5 - 13.03 | 12.83 | 6.05 - 8.61 | 12.93 | 11.5 - 13.03 |
HCO3-std (mmol/l) | 21.3 | 20.5 - 23.9 | 21.7 | 20.9 - 23.5 | 23.8 | 20.5 - 23.9 |
Base excess (mmol/l) | -3.9 | -2.6 - 0.4 | -3.3 | -3.8 - -0.4 | -0.9 | -2.6 - 0.4 |
Interpretation | Primary respiratory acidosis | Within acceptable limits (with mild hyperoxaemia) | Within acceptable limits | |||