Table 2.
Details of ABG samples excluded due to venous contamination as indicated by large differences between SaO2 and SpO2
| Excluded sample | SaO2(%) via co-oximetry (blood gas analyser) | PaO2 (kPa) (ABG result) | SpO2 (%) via peripheral pulse oximetry (sats metre) | PaO2 (kPa) (v-TAC conversion of venous sample) |
| 1 | 59.2 | 4.36 | 86 | 7.29 |
| 2 | 65.9 | 5.22 | 93 | 8.13 |
| 3 | 60.8 | 4.89 | 93 | 9.19 |
| 4 | 85.7 | 6.82 | 94 | 9.44 |
| 5 | 83 | 6.04 | 92 | 9.30 |
| 6 | 84.2 | 6.97 | 92 | 8.79 |
| 7 | 85.3 | 6.95 | 90 | 8.17 |
| 8 | 85.8 | 6.91 | 91 | 7.83 |
ABG, arterial blood gas; v-TAC, venous to arterial conversion.