<prompt> In Pediatric age group, the most common feature of polytrauma isHypothermiaHypotensionHypovelomic shockHypoxemia  <response>: As the surface area to body volume ratio of children is high, thermal energy loss is higher and hypothermia is a higher risk. Due to the greater physiological capacity and ability of children to compensate for the fluid loss, hypotension is a very late and ominous sign of hypovolaemic shock. 