Colorado man dies after EMS administer double dose of ketamine as sedative

Important context missing from headline:

"Less than three hours after Mark Barr called for help, his son was dead of a toxic dose of ketamine, the initial autopsy report said. That report was later amended to list cause of death as toxic effects of ketamine combined with LSD and cough medicine."

I don't know enough about pharmacology to say that they definitely shouldn't have added that ketamine, but it's also very hard to know what to do when someone is in a dangerous state and may (or may not) have other drugs in their system.