La de la fiebre amarilla para viajar a Colombia. Si bien no es obligatoria, es bastante recomendable que se posea.Whilst oxygen saturation (SpO2 ) fluctuated at close to 95% just after intubation, arterial oxygen stress (PaO2 ) was higher on arterial blood gasoline Evaluation. We suspected methemoglobinemia based on the gap concerning SpO2 and PaO2