Editing Shock (circulatory) (section)

==Cause==
{| class="wikitable" style="float: right; margin-left:15px; text-align:center"
! Type
! Cause
|-
| Low volume
| Fluid loss such as bleeding or diarrhea
|-
| Cardiogenic
| Ineffective pumping due to heart damage
|-
| Obstructive
| Blood flow to or from the heart is blocked
|-
| Distributive
| Abnormal flow within the small blood vessels<ref>{{Cite journal |vauthors=Elbers PW, Ince C |date=2006 |title=Mechanisms of critical illness – classifying microcirculatory flow abnormalities in distributive shock |journal=Critical Care |volume=10 |issue=4 |pages=221 |doi=10.1186/cc4969 |pmc=1750971 |pmid=16879732 |doi-access=free}}</ref>
|}

Shock is a common end point of many medical conditions.<ref name="EMB05">{{Cite journal |last=Silverman |first=Adam |date=Oct 2005 |title=Shock: A Common Pathway For Life-Threatening Pediatric Illnesses And Injuries |url=http://www.ebmedicine.net/topics.php?paction=showTopic&topic_id=149 |journal=Pediatric Emergency Medicine Practice |volume=2 |issue=10 |archive-date=2012-03-29 |access-date=2011-09-22 |archive-url=https://web.archive.org/web/20120329194121/http://www.ebmedicine.net/topics.php?paction=showTopic&topic_id=149 |url-status=live }}</ref> Shock triggered by a serious [[allergic reaction]] is known as [[anaphylactic shock]], shock triggered by severe [[dehydration]] or [[blood loss]] is known as [[hypovolemic shock]], shock caused by sepsis is known as [[septic shock]], etc. Shock itself is a life-threatening condition as a result of compromised [[Circulatory system|body circulation]].<ref name="UpToDate 2019">{{Cite web |title=Definition, classification, etiology, and pathophysiology of shock in adults |url=https://www.uptodate.com/contents/definition-classification-etiology-and-pathophysiology-of-shock-in-adults |access-date=2019-02-22 |website=UpToDate |archive-date=2019-02-09 |archive-url=https://web.archive.org/web/20190209123956/https://www.uptodate.com/contents/definition-classification-etiology-and-pathophysiology-of-shock-in-adults |url-status=live }}</ref> It can be divided into four main types based on the underlying cause: hypovolemic, distributive, cardiogenic, and obstructive.<ref>{{Cite book |last=Tintinalli, Judith E. |title=Emergency Medicine: A Comprehensive Study Guide |publisher=McGraw-Hill Companies |year=2010 |isbn=978-0-07-148480-0 |location=New York |page=168}}</ref> A few additional classifications are occasionally used, such as endocrinologic shock.<ref name="EMB05" />