An elderly male client has been brought to the emergency department after experiencing stroke-like symptoms a few hours ago, and has been subsequently diagnosed with an ischemic stroke
The care team is eager to restore cerebral perfusion despite the likely death of the brain cells directly affected by the stroke. What is the rationale for the care team's emphasis on restoring circulation?
A) Failure to restore blood flow creates a severe risk for future transient ischemic attacks.
B) Necrosis will continue unabated throughout the brain unless blood flow is restored.
C) Cells of the penumbra may be saved from hypoxic damage if blood flow is promptly restored.
D) Unless blood flow is restored, the client faces the risk of progressing to hemorrhagic stroke.
Ans: C
Feedback:
Prompt return of circulation increases the chance that the cells of the penumbra will continue to survive. Cell death does not spread to areas that are not normally supplied by the affected vessel, and future risk of transient ischemic attacks (TIAs) is not an immediate priority. Ischemic stroke does not progress to hemorrhagic stroke because the two types have distinct etiologies.
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