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

A.

8 minutes.

B.

2 minutes

C.

20 minutes

D.

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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Related Questions

Correct Answer is B

Explanation

A. Poor judgment: Poor judgment is more likely to be seen with a stroke in the right hemisphere.
B. Intellectual impairment: A stroke in the left hemisphere can cause cognitive and intellectual deficits, especially in language and reasoning.
C. Loss of depth perception: Loss of depth perception is typically seen with right-sided strokes, not left- sided.
D. Impaired sense of humor: This is more common in right-sided strokes affecting the emotional and social aspects of the brain.

Correct Answer is D

Explanation

A. Avoid friction over scaly lesions while bathing is generally good advice, but it is not the primary focus in this situation.
B. Eliminate the use of products containing salicylic acid is not necessary unless the client has a known sensitivity or reaction to it, as salicylic acid is commonly used to treat psoriasis.
C. Maintain occlusive dressings on the lesions throughout the day and remove them at bedtime is not typically recommended for psoriasis, as it can exacerbate the condition or increase irritation. Topical treatments, if prescribed, should be used as directed.
D. Psoriasis is often exacerbated by stress. Therefore, teaching the client effective stress reduction techniques (e.g., meditation, deep breathing, yoga) can help in managing flare-ups.

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