Veterinary Abbreviations List: The Ones You See in Records Every Day
Common veterinary abbreviations for vitals, history, treatment plans, and dosing, the confusing pairs to watch for, and how to write them out for clients.
Veterinary abbreviations are shortened medical terms and phrases used in medical records to write down findings, procedures, and dosing instructions. They help veterinary teams save time when documenting an exam. However, no official list of veterinary abbreviations exists, and some abbreviations vary from one practice to the next.
For example:
This simply means the patient is bright, alert, and responsive (BAR). Mucous membranes (MM) are pink, and capillary refill time (CRT) is less than 2 seconds. The body condition score (BCS) is 5 out of 9. Temperature (T) is in degrees Fahrenheit, heart rate (HR) in beats per minute, and respiratory rate (RR) in breaths per minute.
Other common veterinary abbreviations include WNL (within normal limits), Hx (history), DDx (Differential Diagnosis), Tx (treatment), and Rx (prescription).
These abbreviations exist for a practical reason: the same phrases recur for every patient, and records are often written between appointments rather than after.
Exam and vitals abbreviations
The following abbreviations are common in the physical exam section of small-animal medical records, though specific wording may vary by practice.
| Abbreviation | Meaning | How it appears in a record |
|---|---|---|
| BAR | Bright, Alert, Responsive | BAR, MM pink and moist, well-hydrated, CRT under 2 seconds. |
| QAR | Quiet, Alert, Responsive | QAR on presentation, tolerated exam without resistance, ambulatory on all four limbs. |
| WNL | Within Normal Limits | Thoracic auscultation WNL; no murmur or crackles. |
| NSF | No Significant Findings | Abdomen soft and non-painful; NSF on palpation. |
| MM | Mucous Membranes | MM pink and moist. |
| CRT | Capillary Refill Time | CRT <2 seconds. |
| BCS | Body Condition Score | BCS 6/9, mildly overweight; weight plan discussed with the owner. |
| MCS | Muscle Condition Score | MCS mild loss over the temporal and epaxial muscles. |
| T/P/R | Temperature/Pulse/Respiration | T/P/R 101.5F / 120 bpm / 24 brpm. |
| EENT | Eyes, Ears, Nose, Throat | EENT WNL, no ocular or aural discharge. |
These abbreviations are not universal. Some practices use slightly different abbreviations and combinations of terms. For example, BAR and QAR describe mental status, and some practices add an "H" for hydrated (BARH). In many clinics, WNL and NSF are used interchangeably, while others prefer NAD (no abnormality detected). ADR ("ain't doing right") is sometimes used to describe general malaise.
BCS depends on the scale. Most clinics use the 9-point scale, but some use the 5-point scale. BCS is written as a fraction (for example, 6/9), while MCS is usually recorded as normal, mild, moderate, or severe loss.
The traditional T/P/R is gradually being replaced in modern veterinary records by recording temperature (T), heart rate (HR), and respiratory rate (RR) as separate entries. This removes any doubt about whether "P" means pulse or heart rate, which can differ. In US clinical settings, units are usually left out, and temperature is assumed to be in Fahrenheit.
Medical history and plan abbreviations
After the physical exam, you'll find several abbreviations throughout the patient's history, assessment, and plan. Learn these in context, because several look similar but mean different things.
| Abbreviation | Meaning | How it appears in a record |
|---|---|---|
| Hx | History | Hx of vomiting for 2 days, no diarrhea, eating normally. |
| PE | Physical Exam | PE performed, findings below. Or: PE: BAR, MM pink and moist, heart and lungs NSF. |
| Dx | Diagnosis | Dx: acute gastroenteritis. |
| DDx | Differential Diagnoses | DDx: dietary indiscretion, foreign body, pancreatitis. |
| R/O | Rule Out | R/O foreign body with abdominal radiographs. |
| Tx | Treatment | Tx discussed with the owner; started supportive care and antiemetic therapy. |
| Rx | Prescription | Rx: amoxicillin PO BID for 7 days. |
| Sx | Signs/Symptoms or Surgery | Sx include vomiting and lethargy. (Symptoms) / Sx planned for next week. (Surgery) |
| POC | Plan of Care | POC: bloodwork today, recheck in 48 hours. |
Commonly confused pairs
Dx vs DDx: Dx is the final diagnosis, while DDx lists the possible causes or conditions being considered before reaching a final diagnosis.
Tx vs Rx: Tx refers to treatment given to the patient in the clinic, such as fluids, injections, and wound care. Rx means the prescribed therapy or medication, usually sent home with the pet owner. Some clinics use Rx for both, so always check your clinic's habits.
Sx: Pay close attention to Sx. Context usually makes the meaning clear, but on its own, Sx can be ambiguous. In some clinics it means surgery; in others, signs or symptoms.
POC: In veterinary medicine, POC generally means "point of care" or "plan of care." In a laboratory context, it can also mean "point of care," as in point-of-care testing.
Dosing and route abbreviations
This group of abbreviations requires the most caution. A single misreading can lead to a serious medication error, such as a missed dose, a double dose, or the wrong route of administration, any of which can harm a patient.
| Abbreviation | Meaning | How it appears in a record |
|---|---|---|
| SID | Once daily | Rx: antibiotic PO SID for 7 days. |
| BID | Twice daily | Ear medication AU BID as directed. |
| TID | Three times daily | Rx: analgesic PO TID with food. |
| QID | Four times daily | Eye ointment OS QID until recheck. |
| q12h | Every 12 hours | Antibiotic PO q12h, doses spaced evenly. |
| EOD | Every other day | Medication PO EOD, alternating days. |
| PRN | As needed | Anti-nausea tablet PO PRN vomiting. |
| PO | By mouth/orally | Medication given PO with breakfast. |
| SQ/SC | Subcutaneous | Fluids given SQ over the shoulders. |
| IM | Intramuscular | Injection given IM in the epaxial muscles. |
| IV | Intravenous | Medication given IV via cephalic catheter. |
| OU / OS / OD | Both eyes / left eye / right eye | Drops OU, or OS only if one eye is affected. |
Abbreviations that are easy to misread
The frequency abbreviations SID, BID, TID, QID, EOD, q12h, and PRN need extra care. When handwritten, SID can look like BID. Similarly, the eye abbreviations OU, OS, and OD look alike at a glance and are easy to swap.
Abbreviations clients shouldn't see: writing them out in discharges
The veterinary record is written in shorthand. The discharge sheet, on the other hand, is what the client takes home, so it should be written in plain language anyone can understand.
Here's the same visit written both ways.
In the veterinary record:
On the discharge:
Writing a discharge means decoding the veterinary record into medication instructions, post-operative care, monitoring, vaccine reaction guidance, and follow-up, which takes time. It's the same routine, patient after patient. Retyping "twice a day, morning and evening" or "contact the clinic if you have concerns" takes only a few seconds each time, but it adds up to minutes that clinical staff could spend on patient care.
To save time, Text Blaze lets you keep this wording and reuse it at any point in seconds. Typing the shortcut inserts the saved text into a client portal, email, or discharge, and you can still review and adjust the wording for each patient.
Join over 800,000+ others who are using Text Blaze templates.
Type the short form, get the full phrase: a 2-minute setup
Text Blaze saves the full wording behind a veterinary abbreviation under a keyboard shortcut. Instead of typing a long phrase again and again, you type the shortcut and the full text appears.
For example, save this snippet in your dashboard:
Save it with your preferred phrasing under the shortcut /bar, and typing /bar in any software inserts the full sentence.
You can also tailor it to each patient by adding drop-down menus for mental status, hydration, and mucous membranes. When you type the shortcut, a small form opens so you can pick the findings for that animal. Normal findings are preselected, so for a healthy patient you simply confirm and the sentence is inserted.
Setting up Text Blaze
Setup takes about two minutes: add the extension to Chrome or Edge, or install the Windows or Mac desktop app, then import a snippet pack. To get started quickly with pre-written clinical templates, Text Blaze offers a free SOAP and exam pack with standard normal findings you can customize to match your clinic's wording. It works across browser-based health records, email, and installed desktop software, and you can get started on the free plan.
Once your most-used phrases are saved as snippets and shared with your team, typing the full, clear version takes no longer than typing the abbreviation.




