How should a suprapubic urinary catheter be inserted?

The correct approach to inserting a suprapubic urinary catheter is through the abdominal opening. This method involves placing the catheter directly into the bladder through a small incision made in the abdominal wall, which allows for drainage without passing through the urethra.

In contrast to other methods of urinary catheter insertion, the suprapubic approach is often used when there are issues such as urinary obstruction or when urethral catheterization is contraindicated. It can provide a more comfortable and effective solution for patients needing long-term catheterization.

The other methods mentioned do not accurately describe the suprapubic catheterization technique. For instance, inserting through the urethra pertains to standard urinary catheterization and is not relevant to suprapubic insertion. Topical application does not apply to catheter insertion; it typically refers to medication delivery rather than a procedural method. Lastly, the description of directly inserting into the bladder via the skin encompasses the basic principle of suprapubic catheterization but fails to emphasize the need for a deliberate abdominal incision, which is fundamental to the procedure.