Pet Symptom Checker

Carbon monoxide poisoning

Medical name: Carbon monoxide poisoning

Emergency Warnings



  • Stressful breathing
  • Red skin
  • Unconscious
  • Unusually sleepy
  • Easily worn out
  • Uncoordinated
  • Lethargy
  • Distressed breathing
  • Unconsciousness
  • Weakness
  • Red mucous


One question your emergency veterinarian might ask — when you call in a panic in the middle of the night — is: “What color are the mucous membranes.” The easiest-to-find mucous membranes are the gums above the teeth or the lips. A nice, healthy pink is normal. If your pet normally has dark gums and lips, you need to find another lightly pigmented place, like the vulva in female animals or the prepuce (skin fold over the end of the penis) on male animals. Also, the inner eyelid (gently pull down on skin just below the eye) is another mucous membrane. Confirm a healthy pink tone ahead of time, so you recognize signs of trouble: bright cherry-red might be heatstroke or carbon monoxide poisoning. If you suspect your pet may have carbon monoxide poisoning, provide fresh air, artificial respiration - even if you have never attempted on an animal before - and rush to vet .

Zootoo does not provide veterinary medical advice, diagnosis, or treatment. Always seek the advice of a veterinarian with any questions you may have regarding your pet’s medical condition.
If you think your pet may be experiencing a medical emergency, call your veterinarian or an emergency animal care facility immediately.

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