Search results
Results From The WOW.Com Content Network
It has been estimated that more than 40,000 people per year seek medical attention for carbon monoxide poisoning in the United States. [61] 95% of carbon monoxide poisoning deaths in Australia are due to gas space heaters. [62] [63] In many industrialized countries, carbon monoxide is the cause of more than 50% of fatal poisonings. [11]
Carbon monoxide (chemical formula CO) is a poisonous, flammable gas that is colorless, odorless, tasteless, and slightly less dense than air. Carbon monoxide consists of one carbon atom and one oxygen atom connected by a triple bond. It is the simplest carbon oxide. In coordination complexes, the carbon monoxide ligand is called carbonyl. It is ...
The average red blood cell contains 250 million hemoglobin molecules. [7] Hemoglobin contains a globin protein unit with four prosthetic heme groups (hence the name heme-o-globin); each heme is capable of reversibly binding with one gaseous molecule (oxygen, carbon monoxide, cyanide, etc.), [8] therefore a typical red blood cell may carry up to one billion gas molecules.
This process also produces one molecule of carbon monoxide for every molecule of heme degraded. [80] Heme degradation is the only natural source of carbon monoxide in the human body, and is responsible for the normal blood levels of carbon monoxide in people breathing normal air. [81] The other major final product of heme degradation is ...
Diagnosis is confirmed by a blood gas. [3] Treatment is generally with oxygen therapy and methylene blue. [3] Other treatments may include vitamin C, exchange transfusion, and hyperbaric oxygen therapy. [3] Outcomes are generally good with treatment. [3] Methemoglobinemia is relatively uncommon, with most cases being acquired rather than ...
Each year in the United States, more than 100,000 people visit the emergency department due to accidental carbon monoxide, or CO, poisoning, and at least 400 people die from unintentional CO ...
This is because the spectrum of light absorbed by hemoglobin differs between the oxygenated and deoxygenated states. [35] Blood in carbon monoxide poisoning is bright red, because carbon monoxide causes the formation of carboxyhemoglobin. In cyanide poisoning, the body cannot use oxygen, so the venous blood remains oxygenated, increasing the ...
The structure of cytochrome b5 reductase, the enzyme that converts methemoglobin to hemoglobin. [1]Methemoglobin (British: methaemoglobin, shortened MetHb) (pronounced "met-hemoglobin") is a hemoglobin in the form of metalloprotein, in which the iron in the heme group is in the Fe 3+ state, not the Fe 2+ of normal hemoglobin.