It was the Romans who gave the practice of medicine its prestige.
And consequently, other than the church, no other profession is still as influenced by Latin.
When a doctor says, “Stat!” he is abbreviating the Latin word “statim”, meaning “immediately.”
The use of the word stands out from “Quickly!” or “Hurry!” and conveys urgency.
And yes, the term is still used by real doctors outside of television.