Carbon Monoxide Toxicity Mechanism and Diagnosis
14 Questions
0 Views

Choose a study mode

Play Quiz
Study Flashcards
Spaced Repetition
Chat to lesson

Podcast

Play an AI-generated podcast conversation about this lesson

Questions and Answers

What is the primary mechanism of carbon monoxide toxicity?

  • It directly damages mitochondria, preventing ATP production.
  • It causes smooth muscle contraction, leading to tissue hypoxia.
  • It induces cyanosis by binding to cytochrome oxidase.
  • It binds to hemoglobin with higher affinity than oxygen, interfering with cellular respiration. (correct)

    • Which of the following is a characteristic sign of carbon monoxide poisoning?

  • Blue discoloration of the skin and mucous membranes.
  • Severe muscle spasms and seizures.
  • Cherry-red coloration of the blood. (correct)
  • Rapid onset of respiratory failure.

    • Which of the following is NOT a potential effect of chronic, low-level carbon monoxide exposure?

  • Hemolytic anemia. (correct)
  • Increased risk of heart disease.
  • Memory disturbances.
  • Tiredness and lethargy.

    • Which of the following is the recommended treatment for severe carbon monoxide poisoning?

    <p>Hyperbaric oxygen therapy.</p> Signup and view all the answers

    Which of the following is a potential complication of carbon monoxide exposure during pregnancy?

    <p>Teratogenic effects on the fetus.</p> Signup and view all the answers

    Which of the following symptoms is associated with severe carbon monoxide poisoning?

    <p>Hypotension and syncope.</p> Signup and view all the answers

    What is the mechanism of carbon monoxide toxicity at the mitochondrial level?

    <p>Binds to cytochrome oxidase</p> Signup and view all the answers

    Why does carbon monoxide poisoning lead to hypoxemia but no cyanosis?

    <p>It prevents oxygen from binding to hemoglobin</p> Signup and view all the answers

    What is the most common symptom associated with chronic low-level carbon monoxide exposure?

    <p>Memory disturbances</p> Signup and view all the answers

    Which symptom is pathognomonic for carbon monoxide poisoning?

    <p>Cherry red blood</p> Signup and view all the answers

    Why should hyperbaric chambers be used in the treatment of CO poisoning?

    <p>To reduce CO-Hb levels in the blood</p> Signup and view all the answers

    What is a key characteristic of moderate carbon monoxide poisoning?

    <p>Blurred vision and ataxia</p> Signup and view all the answers

    How does carbon monoxide affect cellular respiration?

    <p>Interferes with cytochrome oxidase</p> Signup and view all the answers

    What distinguishes severe carbon monoxide poisoning from mild and moderate cases?

    <p>'Myocardial ischemia' and 'severe drowsiness'</p> Signup and view all the answers

    More Like This

    Use Quizgecko on...
    Browser
    Open
    Browser
    Browser