What is a hyphema, and how can I manage one? Hyphema is blood in the anterior chamber of the eye. It may appear as a reddish tinge, or it may appear as a small pool of blood at the bottom of the iris or in the cornea.
It’s deeply rooted medical dogma that spinal tap needs to follow a negative CT when evaluating patients for subarachnoid hemorrhage. New literature has come out to challenge that idea. We talk with Scott Weingart of emcrit.org and Ryan Radecki of Emergency Medicine Literature of Note about a 2011 BMJ paper that looks at the sensitivity of computed tomography when performed within 6 hours of headache onset.