Final answer:
To assess circulation and control hemorrhage in relation to thoracic trauma, check the pulse and blood pressure to evaluate circulation. Apply direct pressure to the site of bleeding and consider using a tourniquet as a last resort.
Step-by-step explanation:
When assessing circulation and control of hemorrhage in relation to thoracic trauma, it is important to consider the severity of the injury and the location of the hemorrhage. One way to assess circulation is by checking the patient's pulse and blood pressure. A weak or absent pulse and low blood pressure may indicate poor circulation. In terms of controlling hemorrhage, direct pressure can be applied to the site of bleeding to help stop or slow down the bleeding. If direct pressure is not effective, a tourniquet may be used as a last resort.