Final answer:
To dilate urethral strictures, bougies, sounds, and catheters can be used, but stents are not typically used for this purpose.
Step-by-step explanation:
The question is about which methods can be used to dilate urethral strictures, and which cannot. Urethral strictures can be a result of several conditions, including urethral tumors, urinary bladder tumors, enlargement of the prostate gland (such as benign prostatic hyperplasia), and the stricture itself. Of the options given, bougies, sounds, and catheters can be used to dilate a urethral stricture. Stents, however, are not typically used for the dilation of urethral strictures; they are more often associated with vascular procedures like angioplasty. Stents are used to reinforce vessel walls after dilation. To answer the student's question, the method that is not used to dilate urethral strictures is: Option 3, Stent. It's important to note that the management of urethral strictures should always be guided by a healthcare professional.