EM Basic Essential Evidence- BMJ Subarachnoid Hemorrhage

This is an article published in the last year in the British Medical Journal that looked at the sensitivity of modern CT scanners in detecting subarachnoid hemorrhage. This article made a lot of waves because it suggested that a head CT within 6 hours of headache onset is 100% sensitive for subarachnoid hemorrhage.  Some have called it a practice changer that allows us to avoid doing a lumbar puncture so its important to read it for yourself and decide if it should change your practice.