IDK LOL

My generation uses various AIM speak way too much...like lol, ttyl, idk, lmao, wtf, omg, etc. etc.
Then on top of it, if you go in to a medical profession the use of these types of abbreviations is WAY too abused. We were discussing it yesterday in ultraosund as we tried to figure out what "STS" as the history and problem meant (turns out it was soft tissue sarcoma). Medical professionals love to abbreviate things and use these codes in their medical records a lot. Most of the time it is easy for us medical people to figure out what they are referring to, but in my opinion it wouldn't hurt to put it in parantheses the first time and then use the acronym. Especially when it could have multiple meanings.
Here are some of the more common abbreviations we use in veterinary medicine (and many are used in human med too). Can you guess what they all stand for?
HBC
DOA
PLN (there are multiple meanings for this one)
EENT
DKA
LSA
ADR
ABD
PNST
UG
SF
CM
CRF
ARF
HL
PSS (two meanings again)
NMA
NSR
NSA
RE/RR

Have fun, I am curious to see people's responses and what they think these things stand for! please comment away!