Clinical manifestations of methemoglobinemia based on methemoglobin level (4)
| Methemoglobin level, % | Clinical manifestations |
|---|---|
| ~ 10 | Cyanosis |
| ~ 20 | Headache, fatigue, tachycardia, weakness and dizziness |
| ~ 60 | Acidosis, paralysis, arrythmias, coma and seizures |
| ~ 70 | Death |