DS, 2, recently banged his head. It swelled up and there was some blood, so this was worse than any head injury he's had before. I rang NHS direct who talked me through some questions and told me to go to A&E. It turns out our A&E has a children's A&E. They were great, we hardly waited at all, and they quickly established it wasn't as bad as it looked so he didn't even need stitches.
However, I was talking to my DM afterwards, and she said she'd have just gone to the GP. I said I'd thought about that, but it can be hard to get through on the phone, and as they may not have had an appointment, they might well have just sent me to A&E anyway. She said she wouldn't call, just turn up, and that she'd done that when we were small. Do people do this, or is it just my mum?!