The nurse is presenting a community health program regarding stroke. The nurse emphasizes the importance of early transport to the emergency department. What is the primary rationale for this recommendation?
1. Prompt treatment can save cells in the penumbra.
2. Early reperfusion expands the penumbra.
3. Early intervention can decrease autoregulation.
4. Early treatment eliminates the possibility of reperfusion injury.
1
Rationale 1: The penumbra is an area of cells surrounding the necrotic core of brain tissue present in a stroke. These penumbra cells can be salvaged if reperfusion is prompt.
Rationale 2: Early reperfusion decreases the penumbra.
Rationale 3: Autoregulation is a protective physiological response. The goal is to increase autoregulation.
Rationale 4: Reperfusion injury is not reduced by early treatment.
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