A client is demonstrating manifestations of increased intracranial pressure. Which finding supports that this increased pressure is being caused by an increase in brain tissue?
1. Oxygen saturation 86%
2. Mass in the parietal lobe
3. Subarachnoid hemorrhage
4. Fractured thoracic vertebrae
2
Rationale 1: An increase in cerebral blood flow occurs with cerebral vasodilation due to hypoxemia.
Rationale 2: An increase in brain tissue occurs with a mass such as a tumor.
Rationale 3: An increase in cerebral blood flow occurs with a subarachnoid hemorrhage.
Rationale 4: An increase in CSF occurs with blockage of its outflow paths as could be caused by fractured vertebrae.
Global Rationale: An increase in brain tissue occurs with a mass such as a tumor. An increase in cerebral blood flow occurs in cerebral vasodilation due to hypoxemia or with a subarachnoid hemorrhage. An increase in CSF occurs with blockage of its outflow paths as could be caused by fractured vertebrae.
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