How much do you know about hyperventilation as a treatment for intracranial pres...
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Questions and Answers

What is the effect of hyperventilation on cerebral blood flow (CBF)?

  • Hyperventilation increases CBF
  • Hyperventilation has no effect on CBF
  • A 1 mmHg change in PaCO2 is associated with a 3 percent change in CBF (correct)
  • Hyperventilation decreases CBF

    • When should therapeutic hyperventilation be considered as an urgent intervention?

  • When there is no elevated ICP
  • When there is a chronic cause of increased ICP
  • When the patient has a traumatic brain injury or acute stroke
  • When elevated ICP complicates cerebral edema, intracranial hemorrhage, and tumor (correct)

    • Why should hyperventilation be minimized in patients with traumatic brain injury or acute stroke?

  • Vasoconstriction may cause a critical decrease in local cerebral perfusion and worsen neurologic injury (correct)
  • Hyperventilation has a long-lasting effect on patients with traumatic brain injury or acute stroke
  • Hyperventilation has no effect on patients with traumatic brain injury or acute stroke
  • Hyperventilation increases cerebral perfusion and improves neurologic injury

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