Reference — Fundamentals
Urinary Catheterization & CAUTI Prevention Reference
Catheter-associated urinary tract infection is among the most common healthcare-associated infections — and among the most preventable. The defense is simple to state: insert only when justified, maintain meticulously, and remove at the first opportunity.
Educational use only. Catheter insertion requires an order (or nurse-driven protocol authorization); insertion technique, securement, and removal criteria follow facility policy. This material supports nursing education and exam review. It is not medical advice and is not a substitute for clinical judgment, institutional policy, or medical direction. Always follow facility protocols and current provider orders.
Indications — Appropriate vs Not
Insertion Essentials
Strict sterile technique throughout — if contamination occurs, start over with a new kit. For female patients, if the catheter enters the vagina, leave it as a landmark and use a new sterile catheter for the urethra. Advance until urine returns, then a bit further before inflating the balloon (to the full pre-filled volume — partial inflation makes the balloon sit crooked). Never inflate against resistance or before urine confirms the bladder. For suspected urethral trauma (pelvic fracture, blood at the meatus), do not catheterize — call the provider.
For retention with a large bladder volume, drain per policy — many facilities no longer routinely clamp at fixed volumes, but monitor for hypotension with rapid large-volume decompression and follow protocol.
The CAUTI Prevention Bundle
Insert aseptically
Sterile gloves, sterile field, antiseptic periurethral cleaning, sterile catheter — contamination at insertion seeds the infection. Use the smallest effective catheter size.
Keep the system closed
Never disconnect the catheter from the drainage tubing; sample from the port with a sterile syringe after scrubbing it, never from the bag.
Keep urine flowing downhill
Bag below bladder level at all times — including transport — but never resting on the floor. No dependent loops in the tubing; urine that pools backflows bacteria.
Secure the catheter
Securement device to the thigh (abdomen for some men per policy) prevents urethral traction and meatal injury.
Daily meatal care
Routine hygiene with soap and water during bathing — no antiseptic meatal scrubs needed; just clean, and keep the catheter free of encrustation.
Empty properly
Use a clean container per patient, avoid touching the spigot to anything, empty before transport and when two-thirds full.
Ask the daily question
Does this patient still need this catheter? Necessity review every shift/day is the single most effective CAUTI intervention — the best catheter is the one removed.
Removal & After
Many facilities run nurse-driven removal protocols: when no appropriate indication remains, the nurse removes the catheter without waiting for a new order. Deflate the balloon completely with a syringe (never cut the valve), withdraw gently, and document. After removal, the patient should void within about 6–8 hours — assess for retention (bladder scan per protocol) if they don’t, and teach that mild burning with the first void is common but persistent dysuria, fever, or inability to void is not.
NCLEX Pearls
- ✦Incontinence alone is never an indication for an indwelling catheter.
- ✦Bag below the bladder, off the floor, no dependent loops — the gravity questions are free points.
- ✦Specimens come from the sampling port with sterile technique, never the drainage bag.
- ✦Blood at the meatus or suspected pelvic trauma = stop, call the provider, no catheter.
- ✦Daily necessity review and early removal are the strongest CAUTI prevention interventions.
- ✦After removal, no void within 6–8 hours = bladder scan and provider notification.
Related Resources
Standards & sources
Fact-checked Jun 21, 2026This page is written to align with American Nurses Association (ANA) Standards of Practice · The Joint Commission. It is an educational summary, not a citation of any single document — always verify specific doses, values, and protocols against current guidelines and your facility policy. How we source content →