Reference — Med-Surg
Post-TURP & Continuous Bladder Irrigation Reference
After transurethral prostate resection, the raw prostatic bed oozes blood and clots that can block the catheter and trap urine. Continuous bladder irrigation flushes it out — and managing it well comes down to a color, a calculation, and a fast response to obstruction.
Educational use only. Irrigation rates, manual irrigation, catheter traction adjustments, and antispasmodics follow provider orders and facility protocol. 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.
How CBI Works
A three-way (triple-lumen) catheter has one lumen for the retention balloon, one for inflow of sterile isotonic irrigant, and one for outflow to the drainage bag. The fluid continuously washes the bladder to prevent clots from forming and occluding the catheter. The surgeon may apply traction on the catheter — gentle tension that presses the balloon against the prostatic bed to tamponade bleeding; it is adjusted or released only on the surgeon’s order.
Titrate to the Color
| Urine Color | Means | Nursing Action |
|---|---|---|
| Clear to light pink | Goal — irrigation is keeping pace | Maintain current rate |
| Pink / rosé | Acceptable early; watch the trend | Monitor; titrate up if darkening |
| Bright red / ketchup-like / with clots | Active bleeding or inadequate flushing | Increase irrigation rate, assess for hemorrhage, check for obstruction, notify provider |
| Drainage stopped, bladder distended, spasms | Clot obstructing the catheter | Manually irrigate per order; never let it back up; escalate if it doesn't clear |
The rule of thumb: speed the irrigation up when it’s too red, slow it down as it clears. The drainage color, not a fixed rate, drives the titration.
The Output Calculation
True urine output = Total drainage volume − Irrigant instilled
Example: 3,000 mL drained, 2,200 mL of irrigant ran in → actual urine output is 800 mL. Forgetting to subtract the irrigant makes output look fine while the patient may actually be retaining — always do the math before charting output.
Complications to Catch
Clot obstruction: drainage stops, the bladder distends, and the patient has painful spasms or feels an urgent need to void — assess, manually irrigate per order, and never allow the system to back up.
Hemorrhage: persistent bright-red output, clots, falling hemoglobin, tachycardia, hypotension — increase irrigation, notify the surgeon, and prepare for possible return to the OR.
Bladder spasms: common and painful; antispasmodics (e.g., belladonna & opium suppositories) and reassurance help — but always rule out a clot obstruction as the cause first.
Dilutional hyponatremia (TUR syndrome): absorption of irrigation fluid can dilute sodium — watch for confusion, nausea, and bradycardia, especially with older glycine-based irrigation.
NCLEX Pearls
- ✦Keep CBI output pink-to-clear; bright red or clots = speed up irrigation and assess for bleeding.
- ✦True urine output = total drainage minus irrigant instilled — always subtract.
- ✦Drainage stops + distended bladder + spasms = clot obstruction; manually irrigate per order.
- ✦Don't adjust or release catheter traction on your own — it's tamponading the bleeding.
- ✦Rule out obstruction before treating bladder spasms as 'just spasms.'
- ✦Retrograde ejaculation after TURP is expected; watch for TUR syndrome (dilutional hyponatremia).
Related Resources
Standards & sources
Fact-checked Jun 21, 2026This page is written to align with Academy of Medical-Surgical Nurses (AMSN) · Current medical-surgical nursing standards. 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 →