PHTLS EXAM PREP 2022 with complete solution

what are newton's 1st & second laws? -Answer- 1: a body at rest will remain at rest, and a body in motion will remain in motion until acted upon by an outside force 2: force = mass x accelleration what are the rule of 9's? -Answer- ADULT 9% = entire head 9% = entire arm 9% =chest 9% =abdomen 18% = entire back 18% = entire leg 1% perineum CHILD 18% = entire head 9% =entire arm 9% = chest 9% = abdomen 18% = entire back 14% = entire leg 1% = perineum what are the signs/symptoms of spinal injury? -Answer- neurologic function above the injury is intact and function below the injury is absent or markedly diminished. Specific manifestations will depend on the exact level of injury. what are the (5) major areas of blood loss? -Answer- - external - chest - abdomen - pelvis - long bones what are the (3) types of blast injuries? -Answer- Primary injuries are caused by the effect of transmitted blast waves on gas-containing structures; secondary injuries, by the impact of airborne debris; tertiary injury, by the transposition of the entire body because of blast wind or structural collapse; and quaternary injuries, by all other forces