Some known symptoms of propane poisoning include diarrhea, unconsciousness and dizziness, according to the U.S. National Library of Medicine. Other symptoms of propane poisoning are nausea, irregular heartbeat, convulsions and difficulty breathing
Propane is a flammable gas that is colorless, and it can turn into liquid form if conditions are very cold, explains the U.S. National Library of Medicine. A person with propane poisoning must seek medical help, which can include home treatment in mild cases, or emergency care when symptoms are severe. Someone with propane poisoning needs fresh air and should immediately move away from the poison. If he has exposure and does not swiftly improve after getting some air, then he needs emergency services, either by calling 911 or the local poison center. If the propane gets on the skin or eyes, the person should also flush the affected region with water for at least 15 minutes.
Someone who swallows propane needs to consume milk or water immediately, unless it is difficult for him to swallow due to propane poisoning symptoms, reports HealthCentral.com. After exposure to this odorless gas, the person can sometimes get temporary headaches, and long-term exposure can cause stroke or coma. It can also be fatal.