Final answer:
The correct answer to the question is D. Cystoscopy, which is a diagnostic procedure for internal visualization of the urinary bladder that involves the insertion of a cystoscope through the urethra.
Step-by-step explanation:
The diagnostic procedure in which there is internal visualization of the urinary bladder is known as cystoscopy. This medical procedure involves inserting a cystoscope through the urethra and into the bladder for the purpose of examination. It allows healthcare providers to inspect the bladder lining, diagnose, and sometimes treat conditions affecting the bladder.
Cystoscopy is crucial for diagnosing various urinary tract diseases, including recurrent urinary tract infections, blood in the urine (hematuria), painful urination, frequent urge to urinate, and other bladder abnormalities. It can also aid in identifying problems with the ureters and kidneys.
Options such as pyelography and nephrostomy are related to the kidneys and ureters, whereas cystography is an imaging test for the bladder. Urethral dilation is a therapeutic procedure that is not intended primarily for diagnosing diseases of the urinary tract.