The Case Your first patient of the shift is a 19-year-old male with “the worst headache ever.” His mother states she’s quite worried because he “never gets headaches.” He had some slight nuchal rigidity, but is afebrile. And as such, you arranged a non-contrast CT Head, which was found to have a normal without signs of intracranial hemorrhage. Now, 12 hours after onset of his headache, and after discussing the risk and benefits …