The ER is more like insurance. In this case she was fine and got better more or less on her own but what if she deteriorated quickly? The ER would have the appropriate skill and equipment in-house to save her, whether if she was at home it might’ve been too late to make it to the ER when things actually became critical.
"Clark had to decide: Should she take Lily to the emergency room?
She called a poison control hotline and the answer was yes ...
But Clark knew that the emergency room can be expensive.
...
“I’m weighing my options,” Clark says. “She could have a seizure at any moment. It felt terrible, as a parent, to be in the position of having to do that.”
Clark and her husband decided to give Lily some activated charcoal at home and drive to the emergency room. But they wouldn’t go inside.
Instead, they pulled their car into the second row of the parking lot, about 100 feet from the entrance. They start playing The Little Mermaid on the car’s TV screen for Lily to watch. And they waited.
“We were just sitting there, facing the door and watching Lily,” Clark says. “We chose the second row because we wanted to be close to the entrance, but also trying to look inconspicuous.”
The Clarks waited in the parking lot for a few hours, and Lily didn’t show any symptoms. They drove home without setting foot in the emergency room."
