Question

A 48-year-old with suspected SAH presents 5 hours after onset. The ED has a modern third-generation CT scanner. What is the sensitivity window in which a negative CT can rule out SAH in a neurologically intact patient?

Accepted Answer

Within 6 hours

Answer

Within 1 hour

Answer

Within 3 hours

Answer

Within 12 hours

Answer

CT cannot ever rule out SAH

Practice question

A 48-year-old with suspected SAH presents 5 hours after onset. The ED has a modern third-generation CT scanner. What is the sensitivity window in which a negative CT can rule out SAH in a neurologically intact patient?