Southwest Regional First Aid Exam Taken from the 2019 Southwest Regional Mine Rescue Contest held in Ruidoso, New Mexico Progress Indicator: Question 2 of 30 2.  Where you find badly bruised skin you should: Choices: Estimate 10% loss of blood for each fist sized bruise This is only relevant if the patient is showing signs of shock Treat as though there is an underlying fracture Estimate 5% loss of blood for each fist sized bruise