For a patient with a urinary catheter, which practice reduces infection risk?

• A. Keep the drainage bag above bladder level
• B. Keep the drainage bag below bladder level
• C. Disconnect and reconnect the bag regularly
• D. Clamp the bag frequently

Answer: (B)

Maintaining a closed drainage system and preventing backflow into the bladder is key. Keeping the drainage bag below the level of the bladder uses gravity to drain urine away from the bladder and prevents urine from refluxing back up into the bladder, which reduces bacterial ascent and the risk of infection. When the bag is above bladder level, urine can flow back toward the bladder, increasing infection risk. Disconnecting and reconnecting the bag breaks the closed system and introduces bacteria. Clamping the bag disrupts continuous drainage and can lead to bladder distention and higher infection risk unless done only for specific, authorized procedures. So, placing the drainage bag below bladder level best reduces infection risk.