What should I do first if my dog or cat is breathing rapidly?

Keep your pet calm and minimize activity, monitor and record the breathing pattern and rate, take a video, and contact your vet as soon as possible to arrange an assessment.

How do I measure my pet's breathing rate at home?

At rest, count chest or abdominal rises for 15 seconds then multiply by 4. Repeat a few times and record the values to compare with your pet's normal rate, and share them with your vet.

Does my pet need to fast before a chest X-ray?

Fasting is generally not required for a simple standing X-ray or minor examination; if sedation or advanced imaging is needed, the clinic will advise you on fasting instructions in advance.

Does respiratory distress always require hospitalization?

Hospitalization depends on the severity; persistent breathing difficulty or the need for oxygen support often requires in-hospital monitoring and treatment — follow your vet's recommendation.

How much do the tests and treatment for this condition usually cost?

Costs vary by clinic and region — ask your vet for an estimate before proceeding.

Disease Guide

Respiratory Distress in Dogs & Cats: Symptoms, Imaging & Emergency Care [2025]

Breathing difficulty and respiratory distress are emergencies that may stem from lung, heart, or airway problems. Oxygen support is urgently needed while the underlying cause is investigated.

Take 1 minute to check the symptoms first

Last updated: 2026/01/05

Pethealthmap Editorial Team

Sources: ACVIM, AVMA, National Taiwan University Veterinary Hospital

When to See a Vet

Seek emergency care immediately

•Continuous open-mouth breathing that does not settle or is worsening
•Blue or pale gums or tongue with labored breathing
•Collapse or brief loss of consciousness with no response

Schedule a clinic visit soon (within 24–72 hours)

•Faster-than-normal breathing that is worse at night but the pet can still rest
•Frequent coughing or coughing to the point of retching that persists
•Noticeably reduced activity but still eating and needing more rest

01What symptoms signal a problem?

Common clinical signs and emergency red flags to watch for when a dog or cat is experiencing respiratory issues.

Lethargy, noticeably reduced activity, or excessive sleepiness
Persistent or recurring fever accompanied by general malaise
Frequent coughing or coughing to the point of retching — note frequency and timing
Rapid breathing, open-mouth breathing, or visibly labored abdominal breathing
Collapse, weakness, or inability to stand or move normally
If any of the above signs appear, arrange a veterinary assessment as soon as possible

Seek emergency care immediately if you notice the following symptoms:

⚠️ Visibly labored breathing or persistent open-mouth breathing
⚠️ Gums or tongue turning purple or pale
⚠️ Fainting, loss of consciousness, or unresponsiveness

02How can you assess the situation at home? Key observations and emergency criteria

Key information you can record at home before the vet visit — these details help your vet assess disease progression and prioritize treatment.

Note the time when changes in alertness and activity began, and track the trend
Measure and record your pet's temperature daily, including the exact reading
Use your phone to record video of any coughing, wheezing, or unusual breathing sounds
Count breaths at rest over a set interval and note the result (e.g., count for 15 seconds × 4)
Record changes in appetite, water intake, and elimination patterns
If symptoms worsen, prioritize a clinic that can perform chest X-rays

03How will the vet diagnose the problem? Common diagnostic tests

Common in-clinic tests and imaging assessments to help identify the possible cause and severity of respiratory distress.

Physical examination

auscultation, assessment of breathing pattern and vital signs

Chest X-ray

evaluation of the lungs, trachea, and heart size

Thoracic or abdominal ultrasound

checking for fluid accumulation or organ abnormalities

Echocardiography (cardiac ultrasound)

assessment of heart function and structure

Airway secretion sampling or cytology

looking for evidence of infection or inflammation

Bacterial culture and sensitivity testing (when indicated)

Advanced imaging (CT scan)

for in-depth evaluation of complex or difficult cases

04How is the condition treated and managed after diagnosis? Medication, diet, and care guide

Treatment is guided by test results and disease severity; ongoing monitoring and follow-up visits after discharge are equally important for ensuring a stable recovery.

Antibiotics, anti-inflammatory drugs, or other medications selected based on test results and veterinary judgment
Corticosteroids require veterinary evaluation before use
Structural abnormalities or masses may require specialist referral or surgery
Severe cases may need oxygen therapy or hospitalization for monitoring
After discharge, continue monitoring breathing pattern and activity level, and record any changes
Schedule specialist follow-ups, imaging, or blood tests as directed by your vet

05What should you prepare before the vet visit? Key information to help your vet quickly identify the cause

Use your phone to record video of any coughing, wheezing, or open-mouth breathing

Note the time symptoms started, how they have fluctuated, and when they worsened

Observe your pet's tolerance for light activity and record any changes

Keep a log of changes in appetite, water intake, and elimination

Bring all current medications, supplements, and any previous test results or imaging reports

On arrival, let staff know immediately if your pet needs oxygen or emergency triage

This content is for reference only and cannot replace a professional veterinary diagnosis. If your pet shows signs of illness, please seek veterinary care promptly.