A two-year-old male is brought to hospital by his parents after being found 30 minutes previously with an opened 100 mL bottle of eucalyptus oil. The bottle is empty and some is spilt on his clothes. His parents say that his breath smells of eucalyptus and he is more subdued than normal. His heart rate is 110, BP 100/60 and respiratory rate 30/min.
A two-month-old male infant was brought to hospital when he failed to wake up that morning. The previous day he had a fever and nasal congestion. At presentation at the emergency department, he was dusky, was in respiratory distress, and had poor perfusion. Initial laboratory studies revealed:
The infant's mother said that the only medication she had given him was 120 mL of tea brewed from the leaves of a home-grown mint plant the day prior.