EMS 202 midterm Questions and Correct Answers

Golden Hour/Period Ans The time from injury to definitive care, during which treatment of shock and traumatic injuries should occur because survival potential is best. Usually within 1 hour Crush Injury Ans Trauma pattern in which the body tissues are subjected to severe compressive forces. -Limited circulation -Tissue hypoxia and acidosis, muscle rigor crush syndrome Ans -Body part trapped for 4 hours or longer. -Broad systemic complications -muscle tissue necrosis(rhabdomyolysis) releases toxins -myoglobin, phosphate, potassium and lactic acid enter circulation on limb is extricated. -myoglobin in renal tubes results in renal failure #1 cause if delayed death in crush syndrome -Increased potassium(hyperkalemia) causes arrhythmias Rear end collision Ans Maintain higher index of suspicion, degree of injury may be greater than damage indicates Pressure wave injuries Ans -Most serious and life-threatening -damage air-filled body spaces i.e middle ear, sinuses, bowels, and lungs -pneumothorax Shearing injuries to internal organs Ans Typically caused by sudden deceleration forces Vehicle supplemental restraint systems (air bags) Ans -absorb the energy exchange of rapid deceleration -protection is only for the 1st impact anaerobic metabolis