BUR #18501 has been approved by @nonamethanks.
create alias blood_pack -> blood_bag
blood bag is the more common medical term, but curiously several games including ARK: Survival Evolved, Resident Evil, Barotrauma, and most notably Fallout all use the term blood pack. It also has a similar number of Google results (658,000,000 results in 0.43 seconds to 708,000,000 results in 0.46 seconds), and only conflicts with this group of Mass Effect aliens which I think is a non-issue.
TL;DR utility alias because why not