Table 1: Postoperative blood sample values and methemoglobin levels.
Postop 15th min | 1st hour | 2nd hour | 3rd hour | 5th hour | 7th hour | 8th hour | 10th hour | 24th hour | 48th hour | |
---|---|---|---|---|---|---|---|---|---|---|
Ph | 7.39 | 7.49 | 7.50 | 7.55 | 7.51 | 7.41 | 7.49 | 7.44 | 7.41 | 7.41 |
PO2 | 275 | 204 | 121 | 120 | 152 | 163 | 171 | 159 | 152 | 213 |
PCO2 | 31.4 | 30 | 29 | 26 | 26 | 27 | 30 | 32 | 35 | 37 |
HCO3 | 23 | 23 | 24 | 22 | 21 | 17 | 25 | 23 | 24 | 23 |
SO2 | 99 | 99 | - | - | - | 97 | 98 | 99 | 99 | 99 |
SPO2 | 95 | 92 | 89 | 90 | 92 | 95 | 99 | 100 | 100 | 100 |
MetHb | 2.4 | 5.8 | 16 | 19.8 | 20 | 14.5 | 7.2 | 2.8 | 0.9 | 0.5 |
FiO2 | 50 | 50 | 80 | 100 | 80 | 60 | 50 | 40 | 40 | 35 |
Lactate | 1.8 | 2.1 | 2.3 | 1.8 | 1.5 | 1.1 | 1.6 | 1.3 | 1.1 | 2.0 |
Abbreviations: Postop: Postoperative; PO2: Partial Pressure of Oxygen; PCO2: Partial Pressure of Carbon Dioxide; HCO3: 4 Bicarbonate; SO2: Arterial Oxygen Saturation; SPO2: Pulse Oximetry Saturation; MetHb: Methemoglobin; FiO2: 5 Fraction of Inspired Oxygen.