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Myoglobin in Acute Myocardial Infarction (AMI)
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Myoglobin in Acute Myocardial Infarction (AMI)

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Questions and Answers

Which marker is more sensitive than troponins during the first few hours after an Acute Myocardial Infarction (AMI)?

  • Myoglobin (correct)
  • Carbonic anhydrase III
  • Glycogen phosphorylase (GP)-BB
  • Heart Fatty Acid Binding Protein (HFABP)
  • Which marker is known for its rapid release into the blood as early as 1 hour after cell damage of heart or skeletal muscle?

  • Glycogen phosphorylase (GP)-BB
  • Myoglobin (correct)
  • Carbonic anhydrase III
  • Heart Fatty Acid Binding Protein (HFABP)
  • Which marker has a high negative predictive value and helps primarily in ruling out an infarct?

  • Carbonic anhydrase III
  • Myoglobin (correct)
  • Heart Fatty Acid Binding Protein (HFABP)
  • Glycogen phosphorylase (GP)-BB
  • Which protein is mainly present in skeletal muscle with only trace amounts found in cardiac muscle?

    <p>Carbonic anhydrase III</p> Signup and view all the answers

    Which protein remains within the normal reference range approximately 10 hours after the onset of chest pain, aiding in ruling out AMI?

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

    Which marker shows a similar rise and fall pattern as myoglobin, making their ratio useful in determining if the rise is due to skeletal or cardiac muscle?

    <p>Carbonic anhydrase III</p> Signup and view all the answers

    Which enzyme is an early and specific marker for myocardial necrosis and ischemia?

    <p>Glycogen phosphorylase (GP)-BB</p> Signup and view all the answers

    Which protein is highly cardiac-specific but also expressed at low concentrations in tissues outside the heart?

    <p>Heart Fatty Acid Binding Protein (HFABP)</p> Signup and view all the answers

    Which marker undergoes a rise at 1-3 hours, peaks at 6-9 hours, and returns to normal levels at 24-36 hours after cell damage?

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

    Which marker is known to be abundant in muscle tissue and has a low molecular weight?

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

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