What is the term for an x-ray study of the bladder?

The term for an x-ray study of the bladder is "Cystogram." This procedure involves taking images of the bladder using a contrast dye that is introduced into the bladder, typically through a catheter. This helps visualize the bladder's structure and any potential issues, such as tumors, stones, or abnormalities in its shape or size.

Understanding the other options helps clarify why "Cystogram" is the correct term. Urography refers to imaging studies of the urinary tract, including kidneys, ureters, and bladder but is not specific to the bladder alone. Nephrogram pertains specifically to imaging of the kidneys, highlighting a different anatomical area altogether. Cystoscopy is a diagnostic procedure that involves directly visualizing the bladder with a scope, rather than an x-ray study. Thus, the specifics of each term clearly align "Cystogram" with x-ray imaging specifically focused on the bladder.