Dog Breathing Fast (Over 40 BPM at Rest): Veterinary Triage Guide

Unsure if this is serious?

Is this an emergency?

Get an instant AI triage analysis.

No sign-up required • 100% Free

TL;DR: Tachypnea, or a resting respiratory rate over 40 breaths per minute, is a high-priority veterinary emergency. Seek immediate care if your dog exhibits heavy abdominal breathing or blue-tinged gums, and record a brief video to assist the triage team.

What is tachypnea and what is a normal breathing rate for dogs?

Tachypnea is the clinical term for an abnormally fast breathing rate. While it is normal for a dog to pant after exercise or when warm, breathing rapidly while sleeping or resting is a significant health concern. A healthy dog typically takes between 15 to 30 breaths per minute while at rest.

Is fast breathing in my dog considered a veterinary emergency?

  • Urgency Level: High. A resting respiratory rate consistently over 40 breaths per minute is a veterinary emergency.
  • This often indicates that the lungs are not effectively oxygenating the blood, which can be caused by heart failure, fluid in the lungs (pulmonary edema), or severe pneumonia.
  • If your dog also has blue or purple-tinged gums, or is using their abdomen to help pull in air, seek immediate emergency care.

How can taking a video of my dog help the veterinary triage process?

  • Taking a short video of your dog breathing provides the triage nurse with a clear view of the character of the breath.
  • The video allows the medical team to see specifically if there is increased abdominal effort or an unusual rhythm.
  • This visual data helps the clinic determine the severity of the respiratory distress and ensures your pet is prioritized correctly upon arrival.

Clinical Context (Merck Veterinary Manual)

Compromised breathing in dogs manifests as an increased respiratory rate and effort, followed by a change in respiratory pattern. Dogs may exhibit postural changes such as standing with elbows abducted and back arched, or high on the rear haunches with head and neck extended (orthopnea). Labored, open-mouth breathing and cyanosis indicate significant pulmonary dysfunction and impending pulmonary arrest. A sleeping respiratory rate (SRR) greater than 30 breaths/min is abnormally high (tachypnea). In dogs with mild to moderate pulmonary edema where radiographic findings are unclear, monitoring the SRR at home can be beneficial.

Chapter: Cardiology

Source: The Merck Veterinary Manual, 11th Edition (Page 102)

Protocol reviewed by Dr. Jessica Williams, DVM

Frequently Asked Questions

How do I accurately count my dog's respiratory rate?
Wait until your dog is calm or sleeping. Watch the chest rise and fall; one full rise and fall counts as one breath. Count the number of breaths in 15 seconds and multiply by four to get the breaths per minute.
Could my dog just be dreaming?
While dogs may twitch or huff briefly during REM sleep, their breathing should return to a normal, steady rate quickly. If the fast breathing persists for several minutes or happens every time they rest, it is not just dreaming.
What are other signs of respiratory distress?
In addition to a fast rate, look for 'orthopnea' (standing with elbows out and neck extended), flared nostrils, or a reluctantance to lie down.

Related Symptom Guides