In The Old Guard (2020), Andy injured by gun shot:
Dr Meta: I need to get a line in her and stop the bleeding.
Merrick: Keep her alive at all costs.
What does "get a line in" mean?
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Sign up to join this communityThe doctor wants to put the injured person on a saline drip, to replace fluids lost through heavy bleeding.
get a line on smb/smth
informal learn something about (New Oxford American Dictionary, 3rd Edition © 2010)