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Catheter-related UTI

UTI - catheter associated; Urinary tract infection - catheter associated; Nosocomial UTI; Health care-associated UTI; Catheter-associated bacteriuria; Hospital-acquired UTI

A urinary catheter is a tube in your bladder that removes urine from the body. This tube may stay in place for an extended period of time. If so, it is called an indwelling catheter. The urine drains from your bladder into a bag outside your body.

When you have an indwelling urinary catheter, you are more likely to develop a urinary tract infection (UTI) in your bladder or kidneys.

Causes

Many types of bacteria or fungi can cause a catheter-related UTI. This type of UTI is harder to treat with common antibiotics.

Common reasons to have an indwelling catheter are:

  • Urine leakage (incontinence)
  • Not being able to empty your bladder
  • Surgery on your bladder, prostate, or vagina

During a hospital stay, you may have an indwelling catheter:

  • Right after any type of surgery
  • If you are unable to urinate
  • If the amount of urine you produce needs to be monitored
  • If you are very ill and cannot control your urine

Symptoms

Some of the common symptoms are:

  • Abnormal urine color or cloudy urine
  • Blood in the urine (hematuria)
  • Foul or strong urine odor
  • Frequent and strong urge to urinate
  • Pressure, pain, or spasms in your back or the lower part of your belly

Other symptoms that may occur with a UTI:

Exams and Tests

Urine tests will check for infection:

  • Urinalysis may show white blood cells (WBCs) or red blood cells (RBCs).
  • Urine culture can help determine the type of bacteria in the urine. This will help your health care provider decide on the best antibiotic to use.

Your provider may recommend:

  • Ultrasound of the abdomen or pelvis
  • CT exam of the abdomen or pelvis

Treatment

People with an indwelling catheter will often have an abnormal urinalysis and culture from urine in the bag. But even if these tests are abnormal, you may not have a UTI. This fact makes it harder for your provider to choose whether to treat you.

If you also have symptoms of a UTI, your provider will likely treat you with antibiotics.

If you do not have symptoms, your provider will treat you with antibiotics only if:

  • You are pregnant
  • You are undergoing a procedure related to urinary tract

Most of the time, you can take antibiotics by mouth. It is very important to take all of the prescribed pills, even if you feel better before you finish them. If your infection is more severe, you may receive medicine into a vein. You may also receive medicine to lessen bladder spasms.

You will need more fluids to help flush bacteria out of your bladder. If you are treating yourself at home, this may mean drinking 6 to 8 glasses of fluid a day. You should ask your provider how much fluid is safe for you. Avoid fluids that may irritate your bladder, such as alcohol, citrus juices, and drinks that contain caffeine.

After you have finished your treatment, you may have another urine test. This test will make sure the germs are gone.

Your catheter will need to be changed when you have a UTI. If you have many UTIs, your provider may remove the catheter. The provider may also:

  • Ask you to insert a urine catheter intermittently so you don't keep one in all the time
  • Suggest other urine collection devices
  • Suggest surgery so you do not need a catheter
  • Use a special coated catheter that can reduce risk of infection
  • Prescribe a low-dose antibiotic or other antibacterial for you to take every day

This can help prevent bacteria from growing in your catheter.

Outlook (Prognosis)

UTIs related to catheters can be harder to treat than other UTIs. Having many infections over time may lead to kidney damage or kidney stones and bladder stones.

Untreated UTI may develop kidney damage or more severe infections.

When to Contact a Medical Professional

Contact your provider if you have:

Prevention

If you have an indwelling catheter, you must do these things to help prevent infection:

  • Clean around the catheter opening every day.
  • Clean the catheter with soap and water every day.
  • Clean your rectal area thoroughly after every bowel movement.
  • Keep your drainage bag lower than your bladder. This prevents the urine in the bag from going back into your bladder.
  • Empty the drainage bag at least once every 8 hours, or whenever it is full.
  • Have your indwelling catheter changed at least once a month.
  • Wash your hands before and after you touch your urine.
Open References

References

Centers for Disease Control and Prevention website. Catheter-associated urinary tract infection basics. www.cdc.gov/uti/about/cauti-basics.html. Updated April 15, 2024. Accessed June 28, 2024.

Drekonja D. Approach to the patient with urinary tract infection. In: Goldman L, Cooney KA, eds. Goldman-Cecil Medicine. 27th ed. Philadelphia, PA: Elsevier; 2024:chap 263.

Jacob JM, Sundaram CP. Lower urinary tract catheterization. Partin AW, Dmochowski RR, Kavoussi LR, Peters CA, eds. Campbell-Walsh-Wein Urology. 12th ed. Philadelphia, PA: Elsevier; 2021:chap 11.

Trautner BW, Hooton TM. Health care-associated urinary tract infections. In: Bennett JE, Dolin R, Blaser MJ, eds. Mandell, Douglas, and Bennett's Principles and Practice of Infectious Diseases. 9th ed. Philadelphia, PA: Elsevier; 2020:chap 302.

  • Bladder catheterization - female

    Bladder catheterization - female - illustration

    A catheter (a hollow tube, often with an inflatable balloon tip) may be inserted into the urinary bladder when there is a urinary obstruction, following surgical procedures to the urethra, in unconscious patients (due to surgical anesthesia, coma, or other reasons), or for any other problem in which the bladder needs to be kept empty (decompressed) and urinary flow assured. The balloon holds the catheter in place for a duration of time.

    Bladder catheterization - female

    illustration

  • Bladder catheterization - male

    Bladder catheterization - male - illustration

    Catheterization is accomplished by inserting a catheter (a hollow tube, often with and inflatable balloon tip) into the urinary bladder. This procedure is performed for urinary obstruction, following surgical procedures to the urethra, in unconscious patients (due to surgical anesthesia, coma, or other reasons), or for any other problem in which the bladder needs to be kept empty (decompressed) and urinary flow assured. The balloon holds the catheter in place for a duration of time. Catheterization in males is slightly more difficult and uncomfortable than in females because of the longer urethra.

    Bladder catheterization - male

    illustration

  • Bladder catheterization - female

    Bladder catheterization - female - illustration

    A catheter (a hollow tube, often with an inflatable balloon tip) may be inserted into the urinary bladder when there is a urinary obstruction, following surgical procedures to the urethra, in unconscious patients (due to surgical anesthesia, coma, or other reasons), or for any other problem in which the bladder needs to be kept empty (decompressed) and urinary flow assured. The balloon holds the catheter in place for a duration of time.

    Bladder catheterization - female

    illustration

  • Bladder catheterization - male

    Bladder catheterization - male - illustration

    Catheterization is accomplished by inserting a catheter (a hollow tube, often with and inflatable balloon tip) into the urinary bladder. This procedure is performed for urinary obstruction, following surgical procedures to the urethra, in unconscious patients (due to surgical anesthesia, coma, or other reasons), or for any other problem in which the bladder needs to be kept empty (decompressed) and urinary flow assured. The balloon holds the catheter in place for a duration of time. Catheterization in males is slightly more difficult and uncomfortable than in females because of the longer urethra.

    Bladder catheterization - male

    illustration

A Closer Look

 
 

Review Date: 5/17/2024

Reviewed By: Sovrin M. Shah, MD, Associate Professor, Department of Urology, The Icahn School of Medicine at Mount Sinai, New York, NY. Review provided by VeriMed Healthcare Network. Also reviewed by David C. Dugdale, MD, Medical Director, Brenda Conaway, Editorial Director, and the A.D.A.M. Editorial team.

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