Case of the Month: December, 2012, Page 2

Answer: Given the above findings, nephrolithiasis is the most likely diagnosis. Pyonephritis is a reasonable concern given the elevated white blood cell count, and needs to be excluded.

Question: According to the ACR appropriateness criteria, what is the best initial diagnostic test if you suspect nephrolithiasis?

  1. Abdominal radiograph (KUB)
  2. Renal ultrasound
  3. MRI
  4. CT Abdomen and pelvis with contrast
  5. CT abdomen and pelvis without contrast
  6. CT Abdomen with contrast
  7. CT Abdomen without contrast
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