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Written By: Vince Varamo, DO, Kent Hospital on March 11, 2022
If you are like me, you enjoy all the wonderful things that winter brings, sledding, building snow persons, skiing, drinking hot cocoa, etc. There is one thing that we really don’t take into consideration when cold weather presents itself – carbon monoxide. The human body is an incredible thing and can endure great stress through the winter, however, this may come as a shock to most of you, the body is unable to endure extremes of temperature for extended periods of time. A solution to the inconvenience of the cold is necessary, and that comes in the form of preventing heat loss (ie clothing, gloves) and heating the environment in which we are present (furnace, radiator, gas heater).
Unfortunately, heating our environment can lead to unintended exposure to a very deadly toxin: carbon monoxide.
It is a gas that is invisible and odorless to humans. This is not to be confused with hydrogen sulfide, a deadly gas that smells like rotten eggs. Carbon monoxide is a byproduct of incomplete fuel combustion and is often emitted from household items such as vehicle exhaust, ovens, inadequately serviced home furnaces, space heaters, and small gas engines that you find in-home generators, snow blowers, and lawnmowers. In studies, people are most likely to have their unintended CO exposure while at home.
Hemoglobin is the molecular structure in our red blood cells that carries oxygen molecules. When we breathe in carbon monoxide they attach to the hemoglobin just like oxygen does. Unlike oxygen, however, carbon monoxide provides no benefit to our body’s tissues. In addition to this, the carbon monoxide molecules essentially “stay put” and do not let oxygen reattach to the hemoglobin. This leads to our red blood cells carrying less oxygen to our tissues (brain, heart, muscles, etc.). How long can you hold your breath? It’s a bit more complicated than this hypothetical question, but you get the idea: our body needs a constant supply of oxygen for survival.
Carbon monoxide exposures account for tens of thousands of Emergency Department visits annually, with thousands being hospitalized for significant exposures. Persons under the age of 44 make up the majority of these visits, but older patients make up larger percentiles of persons requiring admission to the hospital. We are at an increased risk of its exposure here in New England, as persons that live in colder parts of the country often have higher risk activities that lead to exposure.
They can be vague, but may include:
In conclusion, carbon monoxide is a deadly gas that we most often encounter at home. Our lifestyle in the Northeast United States often puts us at an increased risk of exposure. It is for this reason that we must be aware of the dangers it possesses to us and our family. Fortunately, exposure is often preventable if we follow the well-established safety guidelines (CDC).
Explore our services to learn more about keeping you and your family healthy throughout the whole year.
Written by:
Vince Varamo, DO
Kent Hospital
Vincent Varamo, DO, is a board-certified Emergency Medicine Physician at Kent Hospital, an academic teaching institution in Warwick, RI. He has a special interest in EMS and toxicology.
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