What is a characteristic of a double J nephroureteral stent?

A double J nephroureteral stent, commonly referred to as a JJ stent, is designed to facilitate the drainage of urine from the kidney to the bladder, particularly in cases where there is an obstruction in the urinary tract. Its design features two coiled ends that resemble the letters "J," which help anchor the stent within the kidney and bladder, preventing it from migrating.

The characteristic that it remains completely intraluminal indicates that the entire length of the stent is situated within the lumens of the urinary tract and does not protrude through the skin surface. This is a critical feature, as it allows for continuous urine drainage while ensuring that the stent does not cause external irritation or require a more invasive means of management.

The other options suggest characteristics that do not apply to a double J stent. For instance, there are flexible JJ stents, and while they are often inserted in outpatient settings, they can also be used in inpatient settings and are not confined to one type of environment. Additionally, emerging from the skin surface would imply it is an external device, which is not the case for this type of stent. The design and function of a double J stent are well suited to the needs of patients requiring