A 29-year-old woman is admitted to the Emergency Department with carbon monoxide poisoning. High-flow oxygen is applied on arrival. Which one of the following is not an indication for hyperbaric oxygen therapy?
A carboxyhaemoglobin concentration of 16%
Arrhythmia
Extrapyramidal features
Loss of consciousness when initially found by paramedics
Pregnancy
Ans:A carboxyhaemoglobin concentration of 16%