I was in the hospital the other day. A doctor prescribed me serum. How could I say this? Can I use "shot"? Like "I got a shot yesterday"?
And what can a nurse say when they do this to you? "I (the nurse) give him (a patient) a shot/serum"?
I don't know if you use serum in this situation so this picture is also attached to prevent any ambiguity about what I meant by serum.