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Osteomyelitis Quiz
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Osteomyelitis Quiz

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Questions and Answers

Why are the metaphysis of long bones commonly affected in children with osteomyelitis?

  • They are actively growing and highly vascular (correct)
  • They are more prone to trauma
  • They have a lower resistance to infection
  • They have a higher concentration of bacteria
  • What is the most common organism responsible for acute hematogenous osteomyelitis?

  • Streptococci
  • Staphylococcus aureus (correct)
  • Pseudomonas aeruginosa
  • E. coli
  • What is the primary cause of bone necrosis in hematogenous osteomyelitis?

  • Direct extension from an adjacent focus
  • Bacterial toxins
  • Ischemia caused by inflammatory thrombosis and pressure by exudates (correct)
  • Periosteal elevation causing stretching of cortical blood vessels
  • Why are the vertebral bodies commonly affected by osteomyelitis in adults?

    <p>Their veins are wide, leading to slowing of the blood stream and stasis of bacteria</p> Signup and view all the answers

    What is the primary mode of spread of infection in hematogenous osteomyelitis?

    <p>Through the medullary cavity</p> Signup and view all the answers

    What is the primary age group affected by acute hematogenous osteomyelitis?

    <p>Children due to high vascularity of growing bone</p> Signup and view all the answers

    What is the most common organism responsible for acute hematogenous osteomyelitis?

    <p>Staphylococcus aureus in children and adults</p> Signup and view all the answers

    Why are the metaphysis of long bones commonly affected in children with osteomyelitis?

    <p>Actively growing and highly vascular</p> Signup and view all the answers

    What is the primary mode of spread of infection in hematogenous osteomyelitis?

    <p>Through the medullary cavity</p> Signup and view all the answers

    What causes the inflamed bone to become necrotic in hematogenous osteomyelitis?

    <p>Ischemia caused by inflammatory thrombosis</p> Signup and view all the answers

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