Rapid Shallow Breathing in Cats During Sleep: Emergency Guide

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TL;DR: Rapid shallow breathing in cats is a life-threatening medical emergency that requires immediate veterinary attention. Providing a short video of your cat's breathing can help the medical team assess the severity and prepare life-saving oxygen therapy before you arrive.

What does it mean if my cat is breathing rapidly and shallowly?

Rapid shallow breathing, known medically as tachypnea, occurs when a cat takes frequent, short breaths that do not appear to fully expand the lungs. While a normal resting respiratory rate for a cat is between 15 and 30 breaths per minute, tachypnea often exceeds 40 breaths per minute. This symptom suggests that the body is struggling to maintain oxygen levels or is compensating for an underlying internal issue.

Is rapid shallow breathing in cats a medical emergency?

  • If your cat is breathing rapidly while sleeping or resting, this is considered a high-urgency medical emergency.
  • Unlike humans, cats rarely show visible respiratory distress until they have reached a critical state.
  • This behavior can be a sign of life-threatening conditions such as congestive heart failure, fluid in the chest (pleural effusion), feline asthma, or severe pneumonia.
  • You should contact an emergency veterinarian immediately.

How can a video of my cat's breathing help the veterinary triage team?

  • Providing a 15-to-30-second video of your cat's breathing can be life-saving.
  • A video allows the triage team to see the specific effort of the chest wall, any abdominal pumping, and the exact respiratory rate.
  • This visual data helps the medical team prepare for your arrival and determine if your cat needs immediate oxygen therapy the moment you walk through the door.

Clinical Context (Merck Veterinary Manual)

Compromised breathing in cats manifests as an increased respiratory rate and effort, followed by a change in respiratory pattern. While dogs stand with elbows abducted and arched backs, cats may sit crouched with the sternum slightly elevated. Labored, open-mouth breathing and cyanosis indicate significant pulmonary dysfunction and impending pulmonary arrest. Pleural space disease causes asynchronous breathing (chest expands on inspiration as the abdomen is pulled inward, then the chest moves inward on expiration as the abdomen expands). Lung parenchymal disease causes quiet, smooth breathing, with the chest and abdominal wall moving in the same direction. Taking radiographs or performing stressful diagnostic procedures before the animal has been stabilized can lead to rapid decompensation.

Chapter: Emergency, Respiratory

Source: The Merck Veterinary Manual, 11th Edition (Page 1663)

Protocol reviewed by Dr. Michael Ross, DVM

Frequently Asked Questions

How do I count my cat's respiratory rate?
Watch your cat's chest rise and fall. One rise and one fall equals one breath. Count how many breaths occur in 30 seconds and multiply by two to get the breaths per minute.
Could my cat just be having a bad dream?
While cats may twitch or have irregular breaths during REM sleep, dreaming-related breathing changes are usually brief. Continuous, rapid, and shallow breathing that lasts for several minutes is a clinical sign of distress, not a dream.
What are other signs of respiratory distress?
Look for open-mouth breathing (panting), a blue or purple tint to the gums, stretching the neck out to breathe, or using the stomach muscles to help push air in and out.

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