Final answer:
The priority nursing intervention for a patient with a lower extremity fracture complaining of calf pain and tightness is preparing the patient for an ultrasound to assess for possible compartment syndrome or deep vein thrombosis.
Step-by-step explanation:
In the scenario where a patient with a lower extremity fracture complains of severe pain and tightness in his calf, which is minimally relieved by pain medications, the priority nursing intervention should be focused on assessing the risk of a possible compartment syndrome or a deep vein thrombosis (DVT). These conditions are medical emergencies and can pose significant risks if not treated promptly. Additionally, elevating the extremity above or to the level of the heart could help, but in case of compartment syndrome or DVT, immediate medical assessment is crucial before any intervention that could potentially worsen the condition, such as elevation or ice.
The correct intervention in such a case would be preparing the patient for an ultrasound, as it is a non-invasive and effective method for diagnosing both DVT and compartment syndrome. An ultrasound will help in visualizing the blood flow in the veins and tissues, which is indispensable for detecting obstructions or pressure abnormalities in muscle compartments.
It is important for the nursing staff to recognize these signs early and act promptly, as well as to continue monitoring for any changes in the patient's condition while preparing for further diagnostic procedures.