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Last year, Intermountain Health used hyperbaric oxygen therapy to treat 157 patients for carbon monoxide (CO) poisoning, and it continues to go up every year. In 2024, Intermountain has already treated 168 carbon monoxide-poisoned patients.
Approximately 50,000 people in the U.S. visit the emergency department each year due to accidental CO poisoning.
There are three things that make carbon monoxide extremely dangerous:
- The molecules of carbon monoxide are so small, they can easily travel through drywall.
- Carbon monoxide doesn't sink or rise – it mixes easily with the air inside a home.
- It is an odorless gas, so without an alarm to notify you that it is in your home or place of work, you likely wouldn't notice until it was too late.
These three traits combined is what gives carbon monoxide the title of, "The Silent Killer." In high enough concentrations it can kill within minutes and claims hundreds of lives each year.
CO is often produced from a faulty furnace or other heating sources inside the home, workplaces, schools and while camping in tents or trailers. Exposures to CO also come from automobile exhaust, small gas engines such as generators and concrete cutting saws, and other fuel-operated machines being used in poorly ventilated spaces.
Lindell Weaver, MD, medical director of the Hyperbaric Medicine Center at Intermountain Medical Center and LDS Hospital, says as temperatures drop and people turn on their heaters, or look for alternative heating sources, they need to also remember to protect themselves and their families from this deadly gas.
"Nausea, tiredness, aches, and pains are just some of the symptoms of carbon monoxide poisoning, which are very similar to the flu," Weaver says. "If you suspect you have been exposed to high levels of carbon monoxide you should leave immediately and seek help."
At Intermountain Health's hyperbaric medicine department, carbon monoxide-poisoned patients are treated with hyperbaric oxygen delivered by breathing pure oxygen while inside a pressurized hyperbaric chamber, to reduce the chance of permanent brain damage.
Although treatment for carbon monoxide poisoning reduces the risk of possible permanent brain or cardiac injury, disability can still occur.
"It's vital that people take the necessary precautions to prevent and avoid carbon monoxide exposure, as it's the best way to keep everyone safe.It can't be seen, can't be smelled, can't be heard – but it can be stopped," Weaver says.
There are several steps you can take to reduce your risk of exposure. Here are some tips from Weaver:
Schedule an annual check-up for your furnace and hot water heater. It's important to have all gas-fired furnaces and hot water heaters checked by heating and air conditioning (HVAC) professionals annually. Furnaces can crack and exhaust vents can become obstructed.
Every home and business should have a battery-operated or battery back-up carbon monoxide alarm and monitor. Check or replace the detector's battery when you change the time on your clocks each spring and fall. Place your detector where it will wake you up if it alarms, such as outside bedrooms.
All homeowners should replace their carbon monoxide alarm every five years.
Consider bringing a carbon monoxide alarm with you when you travel. In the past 20 years, at least 1,090 people have been injured by carbon monoxide leaks in U.S. hotels, with 32 people – including seven children – dying at hotels. And many states do not require carbon monoxide detectors in hotel rooms or short-term rental homes. Some states only require them in new hotels and at least six states do not require detectors in hotels at all.
"The detectors are small and compact. I just throw one in my suitcase with all my clothes and other items. It's now a life-saving necessity on the packing list," Weaver says.
Be aware of symptoms. Carbon monoxide poisoning can be lethal, sometimes with no advance sign of trouble. This is especially true when people are exposed during their sleep and are unaware or unable to call for help. The most common symptoms of CO poisoning are headache, dizziness, upset stomach, confusion, vomiting, and chest pains.
Check any chimney flues for blockage.
Don't keep cars running in enclosed spaces, such as garages.
If a detector sounds, leave your home immediately, call 911 and seek prompt medical help if you suspect CO poisoning.
For more information, go to https://intermountainhealthcare.org/services/wound-care/hyperbaric-medicine/.
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