A 72-year-old female who had been able to talk and walk awoke with right‑sided weakness. When should you record the time she was last known normal?

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Multiple Choice

A 72-year-old female who had been able to talk and walk awoke with right‑sided weakness. When should you record the time she was last known normal?

Explanation:
The time last known normal is the moment before symptoms began. For someone who wakes up with new weakness, the last time she was neurologically normal is when she went to bed. That bedtime is used to estimate onset and guides decisions about treatment, since you often don’t know the exact moment symptoms started. The time you arrived or the wake-up time aren’t reliable indicators of the onset, and you’d only mark unknown if there were no information about prior status. In this scenario, the bedtime is the last known normal.

The time last known normal is the moment before symptoms began. For someone who wakes up with new weakness, the last time she was neurologically normal is when she went to bed. That bedtime is used to estimate onset and guides decisions about treatment, since you often don’t know the exact moment symptoms started. The time you arrived or the wake-up time aren’t reliable indicators of the onset, and you’d only mark unknown if there were no information about prior status. In this scenario, the bedtime is the last known normal.

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