Which action helps maintain a closed system during Foley catheter care?

• A. Opening the drainage system during bag changes
• B. Rinsing the catheter with clean water
• C. Keeping the drainage bag below the level of the bladder
• D. Disconnecting and reconnecting the drainage tubing during care

Answer: (C)

Maintaining a closed urinary drainage system is essential to prevent infection. Keeping the drainage bag below the level of the bladder uses gravity to let urine drain without letting contaminated urine flow back toward the bladder, which helps preserve sterility and reduce infection risk. Opening the drainage system, disconnecting and reconnecting tubing, or rinsing the catheter would break the closed system and create opportunities for bacteria to enter. So, keeping the bag below the bladder is the best practice to maintain a closed system.