Catheter-Associated UTI (CAUTI) Prevention: A Guide for Care Staff

An indwelling urinary catheter is sometimes clinically necessary, but every day it stays in place carries a real risk of infection - and catheter-associated urinary tract infections (CAUTIs) remain one of the most common, and most preventable, healthcare-associated infections in care settings.

What makes CAUTI different from a regular UTI

A CAUTI develops because a catheter provides a direct pathway for bacteria to enter the bladder, bypassing the body's normal defences. The longer a catheter stays in place, the higher the risk - which is why the single most effective prevention strategy isn't a specific cleaning technique, but simply avoiding unnecessary catheter use and removing catheters as soon as they're no longer needed.

Guidance from the CDC's CAUTI prevention guideline sets out this principle clearly: catheters should only be inserted for appropriate, documented clinical indications, and their ongoing need should be reviewed regularly rather than left in place by default.

The core prevention principles

• Only when necessary: A catheter should be inserted only for a clear clinical reason - not for staff convenience or because a resident has occasional incontinence, which is far better managed through other means.
• Aseptic insertion technique: Catheters must be inserted using a sterile technique by appropriately trained staff, minimising the introduction of bacteria at the point of insertion.
• Maintain a closed drainage system: The connection between catheter and drainage bag should stay closed and undisturbed wherever possible, since breaking the seal increases infection risk.
• Secure the catheter properly: A well-secured catheter reduces trauma and movement that can introduce bacteria or cause tissue damage.
• Review the need daily: The ongoing clinical need for the catheter should be assessed regularly, with removal as soon as it's no longer required - not left in place "just in case."

What care staff can do day to day

Most CAUTI prevention isn't complicated clinical technique - it's consistent, unglamorous daily practice that care staff are well placed to deliver:

• Keep the drainage bag below the level of the bladder at all times, to prevent backflow of urine
• Avoid unnecessary disconnection of the catheter and drainage system
• Maintain good hand hygiene before and after any contact with the catheter or drainage system
• Support good perineal hygiene as part of routine personal care
• Ensure the drainage bag is emptied regularly using a clean technique, avoiding the outlet tap touching any surface
• Report any signs of infection - cloudy or foul-smelling urine, fever, new confusion, or pain - promptly rather than waiting for a scheduled review

Why new confusion matters so much here

In older adults, a urinary tract infection - including a CAUTI - very often presents first as new or worsening confusion, agitation, or reduced alertness, rather than the classic symptoms like burning or urinary frequency a younger person might report. This is one of the reasons a tool like the 4AT delirium screening tool is so valuable alongside good catheter care - a sudden change in mental state in a catheterised resident should always prompt a check for infection, not just be attributed to "having one of those days."

Connecting catheter care to wider infection prevention

Good CAUTI prevention doesn't sit in isolation - it's part of a care setting's overall approach to infection prevention and control. Teams with strong general hand hygiene and hygiene culture tend to see fewer catheter-related infections too, because the same habits - clean technique, prompt reporting, consistent routine - protect against both.

Documenting catheter care properly

Clear, consistent documentation supports both good clinical decisions and accountability. Recording the date of insertion, the clinical reason, the planned review date, and each daily review outcome - not just "catheter in situ, no issues" - gives the whole team, and any visiting clinician, an accurate picture of how long the catheter has been needed and why. This kind of detail also makes it much easier to spot a catheter that's quietly been left in place well beyond its original clinical justification, which is exactly the pattern that drives up avoidable infection risk over time.

Frequently asked questions

How often should a catheter be reviewed for ongoing need? Best practice is a daily review of whether the catheter is still clinically necessary, documented clearly, rather than an indefinite "leave it in" approach.

Can care staff empty a catheter drainage bag without specific training? Care staff can be trained to empty drainage bags using a clean technique as part of their role, but catheter insertion and any complex catheter care should be carried out by appropriately trained clinical staff.

What's the most common early sign of a CAUTI in an older resident? New or worsening confusion is often the first noticeable sign, rather than the pain or burning sensation that might be expected in a younger, more communicative person.

Reducing CAUTIs is one of the most achievable infection prevention wins in a care setting. Build your team's confidence with CPD courses for care and healthcare staff.