first aid
US /ˌfɜːrst ˈeɪd/
UK /ˌfɜːrst ˈeɪd/

1.
premiers secours
help given to someone who is injured or ill, before medical treatment by a doctor or nurse can be given
:
•
He administered first aid to the injured runner.
Il a administré les premiers secours au coureur blessé.
•
Do you know how to perform first aid for a burn?
Savez-vous comment prodiguer les premiers secours pour une brûlure ?