ATLS 11 Module #10: MSK Injuries Exam Questions and Answers | Verified | Latest Update 2026 | Graded A+

ATLS 11 Module #10: MSK Injuries Exam Questions and Answers | Verified | Latest Update 2026 | Graded A+ treatment order of an MSK injury - answer-1 - hemorrhage control 2 - neurovascular exam 3 - splinting/motor assessment 4 - imaging 5 - pain control 6 - IV abx and tetanus prophy what is a key part of the neurovascular exam for trauma patients with an MSK injury? - answer-checking distal pulses BEFORE AND AFTER splinting!!!, doppler US when is imaging done in a MSK trauma injury? - answer-AFTER neurovascular exam, alignment, and splinting when imaging and moving the affected limb for xrays, what is important to do physical exam-wise? - answer-CHECK PULSES open book pelvic fracture is often associated with: - answer-pelvic vascular injurywhat are some causes of compartment syndrome? - answer-internal bleeding, swelling from injury, revascularization of ischemic limbs, tight dressings how does compartment syndrome start and progress? - answer-increased pressure on an unyielding anatomic space -- vascular congestion, ischemia, anoxic and metabolic injury -- can progress to tissue death if not tx tx of compartment syndrome - answer-fasciotomy t/f: return of pulses rules out compartment syndrome. - answer-FALSE most sensitive early sign of compartment syndrome - answer-pain on passive stretch pain out of proportion and unrelieved by analgesia, tense swelling, paresthesias, pulselessness, pressure - answer-compartment syndrome what is the calculation for compartment syndrome - answer-delta p compartment measurement of ____mmhg = compromised blood flow - answer-30 how can a reperfusion injury cause an AKI, metabolic dysfunction, or shock? - answer-release of myoglobin how can a reperfusion injury cause cardiac and neural dysfunction? - answer-rapid release of electrolytes and byproducts of anaerobic metabolism major risk in compartment syndrome is an increase in which electrolyte? - answer-potassium which symptom is a late sign of compartment syndrome? - answer-pulselessness abx for an open fracture are ideally given within ______ of ER time - answer-1 hourwhat should you NOT ATTEMPT in the ER when treating an open fracture? - answer-irrigation or debridement factors for antibiotic coverage in an open fracture - answer-severity of fx, extent of soil contamination, water contamination preferred antibiotic regimen for an open fx with NO SOIL contamination - answer-cetazolin 2gm IV q8hours preferred antibiotic regimen for an open fx WITH SOIL contamination - answer-cefazolin 2gm + metronidazole 500mg preferred antibiotic regimen for an open fx WITH WATER contamination - answer-cefazolin 2gm + metronidazole 500mg Significant injuries such as major pelvic-ring disruptions and femoral shaft fractures are particularly associated with the risk of: - answer-substantial hemorrhage what msk conditions can pose acute threats to patient's limbs? - answer-open fx, fx dislocations w NV compromise, acute compartment syndrome, major crush injuries what determines the severity of the injury in msk trauma? - answer-kinetic and force applied to the tissus t/f: Similarly, the energy required to create a comminuted or multifragmentary fracture is much greater than that required to create a simple fracture and implies a much larger zone of injury to both bone and soft tissue - answer-t how are people injured by a secondnary blast? tertiary blast? - answer-shrapnel and debrisblast wind Any pelvic fracture pattern can produce significant hemorrhage, but which have been identified as the patterns most likely to require hemorrhage control interventions? - answer-AP compression 3, vertical shear what other factors other than injury patterns are predictors of the need for hemorrhage control in pelvic fx? - answer-open fx, age 64 t/f:Concomitant injuries may be present in up to 50% of patients with pelvic fractures. - answer-t why is Aggressive distraction of the pelvis to assess for anatomic stability is discouraged? - answer-it may increase bleeding what sx indicate pelvic fx on physical exam - answer-Pain, motion, or crepitus, limb length discrepancy how much blood can the pelvis accomodate? - answer-4-6L is blood loss from the pelvis most often arterial or venous? - answer-venous