Table 2 Progress of blood gas analysis and methemoglobin concentration of case 2
From: Two Cases of Methemoglobinemia Induced by the Exposure to Nitrobenzene and Aniline
|  | Initial * | Progress †| ||||||
|---|---|---|---|---|---|---|---|---|
1Â hour later | 2Â hours later | 4Â hours later | 6Â hours later | 1Â day later | 2Â days later | 3Â days later | ||
pH | 7.41 | 7.40 | 7.40 | 7.36 | 7.34 | 7.34 | 7.42 | 7.46 |
PCO2 (mmHg) | 37.4 | 41.3 | 38.1 | 43.5 | 45.0 | 47.2 | 39,1 | 34.1 |
PO2 (mmHg) | 185 | 221 | 200.9 | 261.1 | 345 | 237 | 114 | 119 |
HCO−2 (mmol/L) | 23.0 | 23.5 | 23.1 | 24.2 | 23.6 | 25.0 | 25.0 | 24.2 |
O2 saturation (%) | 98.3 | 98.5 | 98.6 | 99.0 | 99.2 | 99.0 | 98.3 | 97.2 |
Methemoglobin (%) | 46.8 | 25.3 | 19.3 | 9.9 | 6.6 | 2.4 | 1.5 | 0.8 |