This is a well written case report of a common presentation in emergency departments (altered mental state associated with alcohol intoxication and a possible head injury). It highlights the importance of a good history and maintaining a high index of suspicion for relatively uncommon diagnoses in patients with this common emergency department presentation. Can the authors please clarify if they considered any other diagnoses (that is, their differential diagnosis) before they became aware of the arterial blood gas result and the CT brain result?
Dr Abel Wakai
Pop goes the O2: a case of popper-induced methaemoglobinamia