14 Questions
What is the primary mechanism of carbon monoxide toxicity?
It binds to hemoglobin with higher affinity than oxygen, interfering with cellular respiration.
Which of the following is a characteristic sign of carbon monoxide poisoning?
Cherry-red coloration of the blood.
Which of the following is NOT a potential effect of chronic, low-level carbon monoxide exposure?
Hemolytic anemia.
Which of the following is the recommended treatment for severe carbon monoxide poisoning?
Hyperbaric oxygen therapy.
Which of the following is a potential complication of carbon monoxide exposure during pregnancy?
Teratogenic effects on the fetus.
Which of the following symptoms is associated with severe carbon monoxide poisoning?
Hypotension and syncope.
What is the mechanism of carbon monoxide toxicity at the mitochondrial level?
Binds to cytochrome oxidase
Why does carbon monoxide poisoning lead to hypoxemia but no cyanosis?
It prevents oxygen from binding to hemoglobin
What is the most common symptom associated with chronic low-level carbon monoxide exposure?
Memory disturbances
Which symptom is pathognomonic for carbon monoxide poisoning?
Cherry red blood
Why should hyperbaric chambers be used in the treatment of CO poisoning?
To reduce CO-Hb levels in the blood
What is a key characteristic of moderate carbon monoxide poisoning?
Blurred vision and ataxia
How does carbon monoxide affect cellular respiration?
Interferes with cytochrome oxidase
What distinguishes severe carbon monoxide poisoning from mild and moderate cases?
'Myocardial ischemia' and 'severe drowsiness'
Learn about the mechanism of carbon monoxide toxicity, including its competition with oxygen for hemoglobin, interference with cellular respiration, and smooth muscle relaxation. Understand how to diagnose carbon monoxide poisoning based on patient presentation and history, and the significance of cherry red blood in CO-Hb levels.
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