Iowa State University Veterinarian Records, RS 22/6/0/9, University Archives, Special Collections Department, Iowa State University, http://www.add.lib.iastate.edu/spcl/arch/rgrp/22-6-0-9.html
"Shock" is a term used to describe a situation of cardiovascular collapse. It can arise from several causes and is usually divided into several categories, including: cardiogenic, hemorrhagic, septic, endotoxic, and traumatic shock. These categories are broadly connected by the underlying ultimate failure of the cardiovascular system.
Engwall, Michael and Riedesel, Dean H.
"Recent Advances in Shock Therapy,"
Iowa State University Veterinarian: Vol. 46
, Article 1.
Available at: https://lib.dr.iastate.edu/iowastate_veterinarian/vol46/iss2/1