NCLEX RN Practice Question

The correct answer explains the appropriate preparation for a colonoscopy, which includes fasting and consuming only clear liquids starting the night before. This ensures the bowel is adequately cleansed for optimal visualization during the procedure. Fiber-rich foods and fluids are contraindicated as they may leave residue in the colon. Maintaining regular fluid intake without restriction to beverage type could result in consuming non-clear liquids, which is not appropriate. Continuing usual eating and drinking habits until the morning would compromise the procedure's effectiveness, as the bowel would not be properly prepared.