Read the following medical note to answer questions 11–14:
A patient presents to the ED complaining of lower back pain radiating to the right flank area. The patient has a history of a herniated disc at L4–L5. He also has a history of kidney stones but states that this is not the same type of pain. The doctor has ordered an MRI and an IVP to assist with the diagnosis.
The patient is getting an MRI and an IVP. Which of the following statements regarding these tests is TRUE?