Certified Surgical First Assistant (CSFA) Practice Test 2026 – All-in-One Comprehensive Study Guide for Exam Success!

During a diagnostic cystoscopy, sterile saline is commonly used as the irrigation fluid. Its primary purpose is to provide a clear view of the bladder and urinary tract by maintaining distension of the bladder during the procedure. Sterile saline is isotonic and helps to prevent any irritative effects that could occur with other types of fluids, ensuring patient safety and comfort.

Sterile saline also minimizes the risk of infection since it is a sterile solution specifically designed for medical procedures. It aids in the visualization of any abnormalities within the bladder lining or any possible lesions, polyps, or stones, which is the primary goal of a diagnostic cystoscopy.

While other options like regular saline or water may seem acceptable, they do not provide the same level of assurance in terms of sterility and isotonicity. Using non-sterile solutions could compromise patient safety during the procedure. Consequently, sterile saline is preferred for its safety profile and effectiveness in fulfilling the needs of the cystoscopy.