Myocardial infraction (Lec 9) (Set 1)
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Questions and Answers

Which of the following is a consequence of atheroma?

  • Artery narrowing
  • Thrombus formation
  • Bleeding into the plaque
  • All of the above (correct)

    • What is the main lab sample used for testing myocardial infarction (MI)?

  • Troponin I (cTnI) (correct)
  • Myoglobin
  • Lactate dehydrogenase (LDH)
  • Creatine kinase (CKMB)

    • Which enzyme is specific for cardiac muscle damage?

  • Creatine kinase (CKMB)
  • Lactate dehydrogenase (LDH)
  • Aspartate aminotransferase (AST)
  • Troponin I (cTnI) (correct)

    • Which troponin subunit binds calcium and regulates muscle contraction?

    <p>Troponin C</p> Signup and view all the answers

    What is the gold standard for myocardial infarction (MI) testing?

    <p>Troponins</p> Signup and view all the answers

    What is the treatment for MI involving the use of thrombolytic agents?

    <p>Tissue plasminogen activator</p> Signup and view all the answers

    What is the procedure called where a catheter is inflated in an obstructed vessel to remove obstruction?

    <p>Coronary angioplasty</p> Signup and view all the answers

    What is the term for the thickening and hardening of the artery wall?

    <p>Arteriosclerosis</p> Signup and view all the answers

    What is the term for the lipid-rich accumulation in arteries?

    <p>Atheroma</p> Signup and view all the answers

    What is the term for a graft of artery or vein to a coronary artery to enable blood flow around an obstruction?

    <p>Coronary bypass</p> Signup and view all the answers

    Which of the following is the commonest cause of mortality and morbidity in adults?

    <p>Myocardial infarction (MI)</p> Signup and view all the answers

    What does the term 'infarction' mean?

    <p>Death of tissue following lack of blood supply</p> Signup and view all the answers

    Which artery supplies the left ventricle and left atrium?

    <p>Circumflex branch</p> Signup and view all the answers

    Where does the blood drain into after entering the capillaries in the coronary circulation?

    <p>Coronary sinus</p> Signup and view all the answers

    What is the cause of myocardial infarction (MI)?

    <p>Atheromatous plaque rupture with overlying thrombosis</p> Signup and view all the answers

    What is the initial damage that leads to the development of atheroma in coronary arteries?

    <p>Endothelium in arteries being damaged</p> Signup and view all the answers

    What are the foam cells that develop underneath endothelial cells in the intima called?

    <p>Fatty streak</p> Signup and view all the answers

    What do macrophages release into the intima during the development of atheroma in coronary arteries?

    <p>Lipid and chemical signals</p> Signup and view all the answers

    What is the term for the condition of suffering from a disease or medical condition?

    <p>Morbidity</p> Signup and view all the answers

    What is the structure that the blood drains into after entering the capillaries in the coronary circulation?

    <p>Coronary veins</p> Signup and view all the answers

    True or false: Myocardial infarction is the commonest cause of mortality and morbidity in adults.

    <p>True</p> Signup and view all the answers

    True or false: Atheroma is the term for the lipid-rich accumulation in arteries.

    <p>True</p> Signup and view all the answers

    True or false: The initial damage to endothelium in arteries leads to the development of atheroma in coronary arteries.

    <p>True</p> Signup and view all the answers

    True or false: Macrophages release lipid into the intima during the development of atheroma in coronary arteries.

    <p>True</p> Signup and view all the answers

    True or false: The left coronary artery supplies the left ventricle and left atrium.

    <p>True</p> Signup and view all the answers

    Lipid plaques form due to the release of collagen by cells in the intima.

    <p>False</p> Signup and view all the answers

    Thrombus formation on the plaque can lead to bleeding into the plaque.

    <p>True</p> Signup and view all the answers

    Arteriosclerosis is the term used to describe the thickening and hardening of high pressure artery walls caused by atheroma.

    <p>False</p> Signup and view all the answers

    Troponin I is a specific biomarker for cardiac muscle damage.

    <p>True</p> Signup and view all the answers

    Coronary angioplasty is a procedure where a graft of artery or vein is used to enable blood flow around an obstruction in a coronary artery.

    <p>False</p> Signup and view all the answers

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