Final answer:
Inadequate pain control in a patient with rib fractures can put them at risk for complications, including pneumonia and deep vein thrombosis. The risk of developing pneumonia is increased due to decreased mobility, and blood clots in the legs can lead to a pulmonary embolism.
Step-by-step explanation:
Inadequate pain control in a patient with rib fractures can put them at risk for complications. One such complication is pneumonia. The immobility caused by the pain can lead to poor air exchange and increase the risk of developing pneumonia. Another possible complication is the development of deep vein thrombosis (DVT) or blood clots in the legs due to decreased mobility. These blood clots can travel to the lungs and cause a life-threatening condition called pulmonary embolism.