Which test uses a series of X-rays to examine the kidneys and urinary tract?

The test that utilizes a series of X-rays to examine the kidneys and urinary tract is known as an Intravenous Pyelogram (IVP). This imaging technique involves injecting a contrast dye into a vein, which travels through the bloodstream and highlights the urinary tract on X-ray images. The IVP allows healthcare professionals to visualize the kidneys, ureters, and bladder, helping in the diagnosis of various conditions such as kidney stones, tumors, or urinary tract obstructions.

While other imaging techniques like the KUB series and CT scans also assess the kidneys and urinary tract, they do so in different ways. The KUB series specifically focuses on the kidneys, ureters, and bladder using X-rays without the use of contrast dye. A CT scan offers detailed cross-sectional images but is distinct from the IVP in its methodology and use of contrast media. MRI is primarily used for soft tissue imaging and does not involve X-rays, making it unsuitable for this specific evaluation of the urinary system.