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11 Cards in this Set
- Front
- Back
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How is carbon monoxide produced?
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Odorless, colorless, nonirritating gas produced by incomplete combustion of hydrocarbons
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What is the lethal dose of carbon monoxide?
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ten minute exposure at 1000 ppm
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What animals are most susceptible to carbon monoxide poisoning?
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Dogs and animals that have preexisting heart or lung disease
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What are the 3 most common sources of carbon monoxide exposure?
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1) automobile exhaust in a closed garage
2) Non-vented furnace, gas water heater, or gas/ kerosene space heater in basement, farrowing houses or lambing sheds 3) Airplane cargo areas |
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What source has the highest concentration of carbon monoxide?
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Undiluted warm car exhaust without a catalytic converter
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What is the mode of action of carbon monoxide toxicity?
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CO binds very tightly to hemoglobin so oxygen and carbon dioxide can no longer be carried
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What are 3 types of diagnostic testing that can be done for carbon monoxide toxicity?
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1) Vital signs
2) Arterial blood gas analysis indicate acidosis 3) Biochem profile, CBC, urinalysis all generally normal, maybe elevated creatinine |
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Why is pulse oximetry not very helpful regarding carbon monoxide poisoning?
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Can be falsely elevated reading for oxyhemoglobin
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What is the treatment for CO poisoning?
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give 100% O2
Possible hyperbaric O2 therapy |
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What is the prognosis of CO poisoning?
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Depends upon degree of cellular hypoxia & damage
Monitor cardiac, pulmonary & neurologic function for 2 weeks -behavioral changes may be present after recovery |
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How can you prevent carbon monoxide toxicity?
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Checking sources of indoor combustion to make sure they are correctly installed and ventilated outdoors
-carbon monoxide detectors |
