Why should the catheter drainage bag be kept below the level of the bladder?

Why should the catheter drainage bag be kept below the level of the bladder?

• A. To prevent backflow of urine into the bladder, reducing infection risk
• B. To increase urine drainage pressure
• C. To improve patient comfort only
• D. To facilitate catheter removal

Answer: (A)

Keeping the drainage bag below the bladder uses gravity to move urine away from the bladder and maintains a closed drainage system. This positioning prevents backflow of urine into the bladder, which reduces the risk of bacteria traveling up the catheter and causing a urinary tract infection. It’s not about increasing drainage pressure or improving comfort or facilitating removal; the key purpose is preventing reflux to protect the bladder from infection. Ensure the bag stays lower than the bladder and that tubing isn’t kinked or pulled.

Keeping the drainage bag below the bladder uses gravity to move urine away from the bladder and maintains a closed drainage system. This positioning prevents backflow of urine into the bladder, which reduces the risk of bacteria traveling up the catheter and causing a urinary tract infection. It’s not about increasing drainage pressure or improving comfort or facilitating removal; the key purpose is preventing reflux to protect the bladder from infection. Ensure the bag stays lower than the bladder and that tubing isn’t kinked or pulled.