Final answer:
The nurse should anticipate diagnostic imaging to assess internal injuries based on the restrained driver's symptoms and negative fast exam.
Step-by-step explanation:
The nurse should anticipate c) Diagnostic imaging to assess internal injuries.
Given the restrained driver's symptoms of abdominal, pelvic, and bilateral lower extremity pain, along with vital signs within normal range, diagnostic imaging is necessary to assess for internal injuries. The negative fast exam indicates the absence of fluid in the abdominal and peritoneal cavities.
A negative fast exam does not rule out internal injuries, as some injuries may not result in immediate bleeding. Diagnostic imaging, such as CT scan or MRI, would provide a clearer picture of any potential injuries and guide the appropriate treatment plan.