Shock index is associated with mortality in canine vehicular trauma patients.

Objective: To calculate and compare shock index (SI) in healthy dogs and vehicular trauma dogs (VT), determine the prognostic value of SI in VT dogs, and to assess the correlation between SI and the animal trauma triage score, modified Glasgow Coma Scale score, and lactate in VT dogs.

Design: Retrospective study from April 2016 to February 2018.

Setting: Twenty-four-hour tertiary referral level II trauma center.