What is Subarachnoid hemorrhage?
'''Subarachnoid hemorrhage''' ('''SAH''') is [[bleeding]] into the [[subarachnoid space]]. This space is the area between the [[arachnoid (brain)|arachnoid membrane]] and the [[pia mater]], which surrounds the [[human brain|brain]]. Symptoms may include a severe headache, vomiting, loss of [[consciousness]], [[fever]], and sometimes [[seizure]]s. Neck stiffness or neck pain are also common.<ref name=Car2016>{{cite journal | vauthors = Carpenter CR, Hussain AM, Ward MJ, Zipfel GJ, Fowler S, Pines JM, Sivilotti ML | title = Spontaneous Subarachnoid Hemorrhage: A Systematic Review and Meta-analysis Describing the Diagnostic Accuracy of History, Physical Examination, Imaging, and Lumbar Puncture With an Exploration of Test Thresholds | journal = Academic Emergency Medicine | volume = 23 | issue = 9 | pages = 963–1003 | date = September 2016 | pmid = 27306497 | pmc = 5018921 | doi = 10.1111/acem.12984 }}</ref> SAH causes [[troponin]] levels to rise. ==References== {{reflist}} [[Category:Medical emergencies]] {{med-stub}}