![]() Several adverse outcomes have been reported following acute exposure to high levels of carbon monoxide during pregnancy. Epidemiological studies have linked rises in ambient air carbon monoxide and cardiovascular endpoints. Neurophysiological symptoms including anxiety, psychomotor dysfunction, loss of balance and changes in sleep, memory, vision and smell have also been reported. Like acute poisoning, chronic carbon monoxide exposure can result in non-specific symptoms (headache, lethargy, syncope, nausea and flu-like symptoms), which may be misdiagnosed. No significant adverse health effects have been reliably demonstrated in the literature where carbon monoxide exposure resulted in carboxyhaemoglobin levels of below 6% in healthy individuals.Ī carboxyhaemoglobin level of 30% indicates severe exposure, however significant poisoning effects cannot be excluded at lower concentrations. Following an acute exposure, neuropsychiatric features may develop in some individuals these have been observed up to 40 days after initial exposure.īlood carboxyhaemoglobin levels are not a reliable indicator of poisoning severity or clinical outcome. The cardiovascular system and the central nervous system ( CNS) are the most sensitive target organs for carbon monoxide toxicity. Severe symptoms include confusion, myocardial infarction, respiratory failure, loss of consciousness and death. The most common symptoms following acute exposure are headache, nausea and vomiting, vertigo, alteration in consciousness and subjective weakness. The signs and symptoms of carbon monoxide exposure are often non-specific, therefore poisoning can be difficult to diagnose. Health effects of chronic exposureĬhronic exposure to low concentrations of carbon monoxide may lead to lethargy, headaches, nausea, flu-like symptoms and neuropsychological and cardiovascular issues.Īdverse outcomes including fetal and neonatal death, congenital malformations and neurological effects have been reported following acute exposure to high levels of carbon monoxide during pregnancy. Long-term neurological effects may occur following an acute exposure, including cognitive and behavioural changes. Symptoms of severe poisoning include confusion, myocardial infarction, respiratory failure, loss of consciousness and death. The most common symptoms following acute exposure are headache, nausea, vomiting, vertigo, alteration in consciousness and subjective weakness. Once exposure has ceased, oxygen competes with carbon monoxide to bind with haemoglobin the displaced carbon monoxide is predominantly eliminated unchanged via the lungs Health effects of acute exposure When bound, it reduces the rate at which oxygen is delivered to the tissues, thereby causing hypoxia. Test your carbon monoxide alarm and your smoke alarm every month.Following inhalation, carbon monoxide binds with haemoglobin to form carboxyhaemoglobin. Smoke and carbon monoxide alarms can be purchased at any home supplies store for less than $50. Check the packaging for the manufacturer’s instructions. You can purchase an alarm that detects smoke and carbon monoxide at the same time. If your alarm sounds, leave the building and call 9-1-1. A carbon monoxide alarm should be installed on every level of your home and outside each sleeping area. Like a smoke alarm, a carbon monoxide alarm will sound if it detects carbon monoxide. Do not use fuel-powered heaters in enclosed spaces like a garage, even if the door is open.Never use gasoline-powered engines, charcoal or propane barbecues or grills, or kerosene stoves in closed spaces or indoors. ![]() Check forced air fans for proper ventilation.Ensure all fresh air intake vents, exhaust vents, and chimneys are clear of snow, insulation, leaves, bird nests, lint, and debris.Never idle vehicles in an attached garage, even if the door is open.Make sure wood stoves are properly installed and vented.Have fuel-burning appliances like furnaces, wood-burning fireplaces, and gas dryers cleaned and checked annually by a qualified service technician. ![]() Carbon monoxide poisoning does not cause a fever.Īvoid carbon monoxide poisoning & exposure Symptoms of carbon monoxide poisoning are similar to symptoms of influenza, so they can sometimes be missed. Being exposed to carbon monoxide gas can result in death for people and pets. Carbon monoxide is a colourless, odourless, tasteless gas released from a fossil fuel (like kerosene, gasoline, natural gas, propane, wood or coal) do not burn completely.
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