Immobility is associated with multisystem pathophysiologic sequelae, especially in the critically ill trauma patient. Pulmonary embolus from deep vein thrombosis and nosocomial pneumonia are causes of pulmonary dysfunction that are directly related to immobilization in this population. Because of the high incidence of these complications, early identification of those at risk and institution of aggressive interventions to prevent nosocomial pneumonia and pulmonary embolus are crucial responsibilities of nurses caring for severely injured patients.

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