Get

In Your Inbox

Catster is reader-supported. When you buy via links on our site, we may earn an affiliate commission at no cost to you. Learn more.

Veterinary Abbreviations & Acronyms: 10 Common Terms Explained

Veterinarian-holds-a-black-American-Shorthair-cat

Is your cat BAR and WNL? Is he DUDE normally? Is he having any C/S/V/D?

If you have no idea what any of this means, you’re not alone, so today I’m decoding some of the odd acronyms you’ll find in your feline friend’s veterinary records.

divider 1 paws

Top 10 Vet Acronyms Decoded & Explained:

1. ADR: “Ain’t doin’ right”

When you bring your cat to the vet because his behavior seems a little off to you — his appetite’s down a little bit and he’s not chasing his toys like he usually does — but there are no obvious symptoms of injury or disease, your vet may list the cause for the visit as ADR. More grammatically uptight vets may use NDR (not doing right).


2. BAR: Bright, alert, and responsive

This is just like it sounds. If your cat is feeling good, he’s looking around at his environment and responding to the noises and visual stimulation in the exam room, he’s BAR. A cat who’s a bit under the weather or one who has a more laid-back disposition might be QAR (quiet, alert and responsive).

female veterinarian examining cat on the table
Image Credit by: Healthy Definition, Shutterstock

3. C/S/V/D: Coughing, sneezing, vomiting, diarrhea

When your vet asks you about your cat, she’ll probably ask you if he’s been having any of these symptoms, and this is how she abbreviates your response. Hopefully the note will read “C/S/V/D: None.”


4. DDx: Differential diagnosis

If your cat is feeling sick and his symptoms could be related to one or more of several conditions, the vet will list the possibilities as differential diagnoses. If you bring your cat in because he’s vomiting and has diarrhea, your vet might write something like “DDx: Parasites, bacterial infection, neoplasia, dietary indiscretion.” She may offer diagnostic tests such as a fecal test, X-ray or blood panel to narrow the scope of possibilities.


5. DUDE: Defecating, urinating, drinking and eating

During a physical exam, your vet will ask you if your cat has had a normal appetite and thirst level, and if he’s been peeing and pooping regularly. If you answer yes to all these questions, you might see a note that reads “DUDE: Normal.”

Veteterinarian explaining to woman cat medical condition
Image Credit by: Nestor Rizhniak, Shutterstock

6. Dz: Disease

This is just shorthand based on phonetics, so if you see “Renal dz” on your vet’s DDx list, you’ll know she suspects that renal (kidney) disease is one possible reason your furry friend is in a funk.


7. NSF: No significant findings

Unlike NSF on your bank statement, NSF is a good thing in your cat’s records because it means that when your vet examined your cat, she didn’t find anything to cause her any concern.


8. R/o: Rule out

When your vet offers diagnostic tests to narrow down her DDx, she may note that the tests are to r/o one or more conditions. So, if renal dz is on your vet’s DDx list, she may want to do a blood test to check your kitty’s lab values and hopefully r/o that renal dz. Some vets use r/o as a substitute for DDx.

veterinarian listening cat with stethoscope
Image Credit: Tatyana Vyc, Shutterstock

9. T/G: Tartar, gingivitis

When your vet checks your cat’s teeth, she’ll characterize the amount of tartar buildup and the redness and swelling of his gums on a four-point scale. T0/G0 means your cat’s teeth are beautiful and clean and his gums are healthy. On the other hand, T4/G4 means your cat’s mouth is a hot mess and he needs major dental work. A cat with a lot of tartar but not much gingivitis may be T3/G1.


10. WNL: Within normal limits

Your cat’s medical exam includes a check of the heart rate, respiration rate and pulses in various major arteries. If your cat’s heart rate is between 140 and 220 beats per minute and he’s breathing 20 to 30 times per minute, your vet will characterize that as WNL.

tuxedo cat being checked by vet
Image Credit: didesign021, Shutterstock

divider 1 paws

Conclusion

Understanding the abbreviations in your cat’s medical records can make vet visits less confusing and help you stay informed about their health. Terms like BAR (bright, alert, and responsive) or DDx (differential diagnosis) are helpful tools vets use to work quickly and clearly. Once you get the hang of them, they’re easy to follow. And if you’re ever unsure about something in your cat’s notes, don’t hesitate to ask your vet; it’s always worth getting clarity when it comes to your pet’s health and care.

Learn more about your cat with Catster:


Featured Image Credit: 89stocker, Shutterstock

Want content like this delivered to you?

Sign Up For Our Newsletter

News, insights, expert advice, and everything cat

* By submitting, you agree to our Terms & Conditions and Privacy & Cookies Policy.

How useful was this post?

Click on a star to rate (you can leave written feedback after clicking submit)

Help us improve Catster for pet parents!

Your feedback really matters.

What did you like about this post? Also how can we improve it?

Join the conversation

Leave a Reply

You’re very welcome to leave a comment or question. Please know that all comments must meet our community guidelines, and your email address will NOT be published. Let’s have a positive and constructive conversation.

Talk With A Vet Online

Peace of mind,
anywhere, anytime

Affordable vet advice

How Much Does a Munchkin Cat Cost in 2025? Updated Price Guide

With their large, curious, owl-like eyes and little legs, it’s easy to see why Munchkin cats get so much attention. These intelligent, incredibly...

11 Ways to Keep Cats Out of Flowerbeds: Easy & Expert Tips

We all love our feline friends. They keep us company and even add beauty and elegance to our houses. But there are probably...

Chartreux Cat vs Russian Blue Cat: What Is the Difference? (With Info & Pictures)

To the untrained eye, the Chartreux cat and the Russian Blue cat look the same, as they both come in a similar shade...

10 Best Cat Toys in Australia in 2025 – Reviews & Top Picks

However, the range of cat toys out there these days is insane. As a cat owner just trying to provide their cats with...

More related

Can Cats Eat Roast Beef? Vet Reviewed Benefits & Concerns

It is difficult to ignore the urge to spoil our pets. After all, we do it all the time for ourselves, so we...

Top 10 Cutest Cat Videos of All Time

There’s no denying the fact that the internet loves cats. You can find an endless supply of viral videos that feature cats doing...

Will a Cat Eventually Come Down From a Tree? Vet-Approved Tips to Help Them

Cats are extremely athletic animals and exceptional climbers. While climbing is a great way for a cat to burn excess energy and get...

15 Vet-Approved Reasons to Keep Your Cats Indoors

Keeping your cat indoors, outdoors, or a mixture of the two may seem a no-brainer to some pet owners. It’s often a cultural...

Keep reading

How to Treat a Burned Cat Paw Pad: 6 Vet-Approved Tips

Given how curious, fearless, and agile they are, cats have a way of getting into things that they shouldn’t. Add the fact that cats love warmth but cannot distinguish dangerous hot surfaces from safe ones, and you have a recipe...

vet checking up tabby cat

Why Your Older Cat Is Not Using the Litter Box (7 Likely Reasons)

It can be a bit frustrating when your cat uses the bathroom outside the litter box, but it’s not uncommon for older cats to have accidents. A lot of changes occur as your cat gets up there in age. Caring...

cat lying beside litter box

Are There Cat Hemp Treats? Vet-Verified Health & Safety Facts

With hemp products becoming more and more popular, pet owners worldwide are increasingly wondering if hemp-based products can be offered to cats. The answer is yes, cats can have hemp-based treats; however, these products should always be approved by your...

giving orange cat a hemp chew

Can Feral Cats Be Friendly? Vet-Reviewed Facts & Advice

Feral cats aren’t socialized by humans, by definition. They haven’t been raised around humans and have spent much of their time with other cats instead. Therefore, feral cats typically act like wild animals and aren’t usually friendly—unlike the domestic cats...

feral cat on the stairs

How Do Cats Fall Asleep So Fast? Vet-Reviewed Feline Sleep Cycle

So, we’ve probably all used the term “catnap” to describe a short stretch of sleep that we take during the day. Perhaps it’s because cats are perceived as lazy, but anyone who lives with a cat knows that this is...

cute ginger kitty

Can Cats Drink Lactose-Free Milk? Vet-Verified Nutrition Facts

The image of the happy cat lapping up milk is an old cliché. While many feline parents assume that their kitties would enjoy a bowl of milk now and then, the surprising truth is that dairy products from cows could...

Can Cats Drink Lactose-Free Milk

Why Is My Cat Hiding? 3 Vet-Reviewed Reasons for This Behavior

Have you ever been looking around for your cat, but they seem to be missing? It doesn’t mean that they’ve run away. Instead, your cat is just hiding. This is perfectly normal for cats. They’re self-reliant creatures, and in many...

A cat hiding under a couch

Maine Coon Hip Dysplasia: Why Is It So Common? Our Vet Answers

Your Maine Coon is a loveable giant of a cat, but you’ve noticed that they seem to favor a hind leg when they’re walking or jumping. You’ll want to consult a veterinarian because it could be hip dysplasia. Let’s take...

maine coon cat at the vet with owner