('disapproving') She had a reputation for being an 'ambulance chaser'. [=a lawyer who gets clients by convincing accident victims that they should file a lawsuit about the accident]
She was taken 'by ambulance' [=in an ambulance] to the hospital.
They called (for) an 'ambulance'.
(..) They plead guilty, we drop the conspiracy and conduct unbecoming. - Twenty years. They're home in half. - I want . - Can't do it. - They called the ambulance. I don't care if they called the Avon lady. They killed a Marine. The rag was tested for poison. The autopsy, lab reports. (..)1992 A Few Good Men
(..) We saw blood dripping down his mouth... and we pulled the tape off and there was blood all down his face, sir. That's when Lance Corporal Dawson called the ambulance. Did anyone see you call the ambulance? No, sir. Were you there when the ambulance got there? (..)1992 A Few Good Men