Petroleum Hydrocarbon Toxicosis in Dogs
Petroleum hydrocarbon toxicosis is a severe and disease-like reaction that occurs when a dog is exposed to refined petroleum oil products, or ingests products of this type.
Petroleum products that commonly poison small animals are fuels, solvents, lubricants, and waxes, as well as some pesticides and paints that have a petroleum base. Petroleum products like benzene and mineral spirits are more likely to be inhaled into the lungs, causing chemical pneumonitis, a life-threatening condition in which the petroleum product spreads all over the surface of the lungs, causing inflammation. Products that have an aromatic, ring-like chemical structure, such as benzene, are most likely to cause systemic toxicity (throughout the body).
Putting petroleum products like gasoline or kerosene on a dog’s skin, or near its mouth, will poison it. Dogs are sometimes exposed to these products through exposure to accidental spills, and sometimes people will put gasoline, or other solvents, on a dog to remove something that has gotten onto its skin or hair, such as paint and other sticky substances.
Do not induce vomiting with this type of poisoning, as the substance may do more harm coming back through the esophagus than it did going down. Or, your dog could breath some of the toxin into its lungs, causing aspiration pneumonia.
Cats are also susceptible to petroleum hydrocarbon toxicosis. If you would like to learn more about how this condition affects cats, please visit this page in the mydomain.com health library.
Symptoms and Types
- Pet smells like a petroleum product
- Difficulty breathing (i.e., choking, coughing, gagging)
- Abdominal pain
- Blue-purple colored skin/gums
- Excessive salivation
- Pawing at the muzzle
- Champing the jaws
- Instability/trouble walking (ataxia)
- Tremors and convulsions (rare)
- Irregular heartbeat
- Respiratory arrest
- Loss of consciousness/comatose
- Loss of all body functions
- Inhalation, ingestion, direct contact with petroleum hydrocarbons: gasoline, benzenes, kerosene, paint thinner, linseed oil, and turpentine (the last two are not hydrocarbons, but the toxic effect on the body is very similar)
- Toxicity can result from swallowing petroleum hydrocarbons, having petroleum hydrocarbons on the skin, having petroleum hydrocarbons in the fur, or from breathing fumes from petroleum hydrocarbons
You will need to give a thorough history of your dog’s health, including a background history of symptoms, and possible incidents that might have led to this condition. The history you provide may give your veterinarian clues as to which organs are being affected by the toxin, as well as to be able to rule out other toxicities, such as ethylene glycol or drug exposure. If you can take a sample of your dog’s vomit to your veterinarian, treatment can possibly be administered with more immediacy.
A complete blood profile will be conducted, including a chemical blood profile, a complete blood count, a urinalysis, and an electrolyte panel. Your veterinarian will test vomit or stomach contents for petroleum distillates. Some animals develop aspiration pneumonia from inhalation of a petroleum product. Your veterinarian will take X-ray images of the chest to look for evidence of inflammation and pneumonia, so that it can be treated immediately.
Your veterinarian will give your dog activated charcoal to decontaminate and neutralize the toxin. If your dog ingested the petroleum products recently, a stomach lavage (wash) will also be performed. Causing the dog to vomit is usually not wise under these circumstances, as the dog may contract aspiration pneumonia, a potential and very serious side effect of vomiting.
In all cases of uncomplicated petroleum hydrocarbon ingestion (i.e., not contaminated with some other, more toxic substance), the primary goal is to minimize the risk of aspiration into the dog’s lungs. Your veterinarian may give your dog oxygen therapy, depending on the health of its lungs when it arrives at the veterinary hospital. If your dog had petroleum hydrocarbons on its skin or fur, it will be bathed at the hospital, and possibly given topical antibiotics to prevent infection of the skin due to irritation.
Living and Management
Keep all petroleum products and petroleum-based products out of the your dog’s reach, preferably in a locked or childproof cabinet, to prevent accidental poisoning. If your dog shows any signs of respiratory distress at home after it is released from the hospital, such as an increased breathing rate, panting, coughing, etc., call your veterinarian immediately and take your dog to a veterinary hospital for emergency treatment.
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