If blood flow to the brain is interrupted, how quickly does cellular death occur?

8 minutes.

2 minutes

20 minutes

5 minutes

Answer and Explanation

The Correct Answer is B

B. Brain cells begin to die within 2 minutes if blood flow is interrupted, which is why rapid intervention is crucial during a stroke or other conditions that block cerebral blood flow.
A. 8 minutes is too long for brain cells to survive without oxygen.
C. 20 minutes is too long for brain cells to survive without oxygen.
D. 5 minutes is too long for brain cells to survive without oxygen.

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Correct Answer is ["A","B","E"]

Explanation

A. Dim lighting installed throughout the house: Poor lighting increases the risk of falls and accidents, especially after a stroke.

B. The hot water heater is set at 54°C (130° F): Hot water set at this temperature can lead to burns, posing a safety hazard.
C. Medications are stored in a clear bag: This is not a safety hazard; however, medications should be stored properly and organized for easy access.
D. Grab bars are installed in the bathroom: This is a safety feature that helps prevent falls and should be encouraged.
E. Area rugs are placed in the living room: Rugs can pose a tripping hazard, especially for stroke patients who may have mobility issues.

A. The BP must be lower than 130/70 mm Hg to receive fibrinolytic agents. B. Elevated BPs are expected after a stroke, and drug therapy should be initiated. C. A lower BP is a protective response to maintain cerebral perfusion. D. Drugs to lower BP are recommended if the BP is 220/120 mm Hg or higher

Correct Answer is D

Explanation

A. The BP must be lower than 180/105 mm Hg to receive fibrinolytic agents, not 130/70 mm Hg.
B. Elevated BPs are common immediately after a stroke, but drug therapy to lower BP is not initiated unless it reaches high levels (typically > 220/120 mm Hg).
C. A lower BP does not act as a protective response; maintaining a higher BP can be necessary initially after a stroke to ensure adequate cerebral perfusion.

D. If BP is 220/120 mm Hg or higher after ischemic stroke, aggressive antihypertensive therapy is initiated to reduce the risk of hemorrhagic transformation and other complications.

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If blood flow to the brain is interrupted, how quickly does cellular death occur?

Nursing Test Bank

Naxlex Comprehensive Predictor Exams

A nurse is performing a home safety assessment for a client who has experienced a stroke. Which of the following findings are a safety hazards for the client?

Correct Answer is ["A","B","E"]

Explanation

Which statement is accurate about the recommendations for BP management after an ischemic stroke?

Correct Answer is D

Explanation

A nurse is caring for a client who has increased intracranial pressure (ICP) following a closed- head injury. Which of the following actions should the nurse take?

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When explaining normal intracranial pressure (ICP) balance to the patient's family, which three components would the nurse include?

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