Skip to main contentMain content

Elimination care

NCLEX elimination chapter: incontinence types, retention and oliguria, CAUTI prevention, impaction versus diarrhea, enemas, and stoma color emergencies.

ClesialReviewed by Sophia Bennett, RN

Contents7 sections

Elimination items ask whether the leak is stress, urge, or overflow, whether the bowel “diarrhea” is really impaction, and whether the stoma still looks alive.

Urinary assessment and incontinence types

Incontinence type is not a synonym for “wet pads.” Stress, urge, and overflow look similar on a linen change and need different first moves. Name the mechanism, then pick the intervention that matches it; pelvic floor teaching for stress will not empty a retained bladder, and a bladder scan will not fix a sudden detrusor urge.

PatternCueMechanismFocus
StressLeak with ↑abdominal pressure (cough, laugh, sneeze, lift)Weak pelvic floor / urethral support; bladder not overfullKegels, weight, timed voids
UrgeSudden compelling need; hard to deferOveractive detrusor contractionsBladder training / meds as ordered
OverflowDribble + retention cuesBladder already full; urine leaks past the overflowRelieve retention first
Oliguria<30 mL/hr patternLow perfusion, obstruction, or kidney failure until proven otherwiseAssess/notify

Stress incontinence leaks when cough, laugh, sneeze, or lift raises abdominal pressure against a weak pelvic floor or urethral support; the bladder itself is not overfull. Teaching Kegels, weight management when relevant, and timed voiding targets that pressure leak. Urge incontinence is a sudden, hard-to-defer need from overactive detrusor contractions; bladder training and ordered anticholinergics or other bladder meds address the drive, not the pelvic floor alone.

Overflow is different physics: the bladder is already full (obstruction, neurogenic retention, postop atony) and urine dribbles past the overflow. Treating the drip with Kegels or urge meds leaves the retention in place. Relieve the retention; bladder scan, straight cath or ordered indwelling pathway, then treat the cause. Postop no void for about 6-8 hours, or a strong urge with inability to empty, is that retention picture until you prove otherwise.

Bladder scanner on a cart with blank screen.
Bladder scanning helps confirm retention before catheterization.

At the bedside, scan before you cath when protocol allows; you confirm volume, avoid an unnecessary invasive pass, and document the finding that drives the next order. Oliguria as a sustained pattern under about 30 mL/hr is not a quiet charting note: assess volume status, catheter patency if one is in, and escalate. The kidney or the plumbing may be failing; waiting for “more data next shift” is the trap.

Catheters and CAUTI prevention

An indwelling catheter is a highway from the collection bag to the bladder. Bacteria climb when the system opens, when urine pools in dependent loops, or when the bag hangs above the bladder and refluxes. CAUTI prevention is mostly about not giving organisms that chance; and removing the catheter the moment it is no longer needed.

ActionWhy it prevents infection
Sterile insertionKeeps periurethral bacteria out at the start
Closed drainage system stays closedEvery unnecessary open port is a contamination event
Bag always below bladder levelGravity prevents reflux of colonized urine
Empty before transportA full bag tips and refluxes when moved
No dependent loops on the floorStagnant urine in tubing becomes a reservoir
Remove ASAP when no longer indicatedRisk rises every day the catheter stays in
  • Secure the catheter to prevent urethral traction injury.
  • Perineal hygiene with soap and water as taught; avoid harsh antiseptic irrigation routines that are not ordered.
  • Specimen from the sampling port with aseptic technique, not by opening the bag drain.

The distractor that looks tidy is lifting the bag onto the bed “just for a minute,” opening the system to irrigate without an order, or teaching stress Kegels for overflow dribble. Another common miss: calling every leak “incontinence” and skipping the retention screen after surgery. Match the leak pattern first; then the action follows.

Bowel problems and enemas

Bowel items often hide a mislabel: liquid stool that looks like diarrhea can be overflow around a hard fecal mass, especially after opioids. Opioids slow gut motility; scheduled prevention (fluids, fiber as allowed, softener/stimulant as ordered) beats waiting for crisis. Both bowel and ostomy items reward looking at the whole abdomen and tissue color, not the word “diarrhea” alone.

  1. Suspect impaction when liquid stool leaks around a constipated abdomen; assess before more antidiarrheal.
  2. Left side-lying (Sims) for enemas unless ordered otherwise.
  3. Opioid constipation: prevention beats crisis (fluids, fiber as allowed, scheduled softener/stimulant per order).

Why watery stool plus a hard, distended abdomen means impaction until you rule it out: solid stool blocks the lumen; liquid stool from higher up seeps around the mass and looks like diarrhea. Giving another antidiarrheal alone can worsen the blockage picture. Assess the abdomen, last true bowel movement, and digital exam or imaging pathway per protocol before you treat “diarrhea.”

Enemas commonly use left Sims (left side-lying) so fluid follows the descending colon’s anatomy. Unless the order says otherwise, that position is the default; not supine “for comfort” if comfort blocks the flow path. After the enema, stay with retention time and tolerance; the goal is evacuation of the mass or prep, not speed alone. Digital removal of impaction, when ordered and within scope, needs slow technique and a watch for vagal bradycardia; stop and support if the client becomes pale and bradycardic.

Ostomies: perfusion and pouch care

A healthy stoma is beefy red and moist; like well-perfused mucosa. Purple, dusky, or black with sluggish capillary refill means ischemia: the tissue is losing blood supply. That is a surgical notify-now problem, not a “watch through the next pouch change” problem. Do not massage, poke, or wait for it to “pink up.” Pale or dry can also signal trouble; escalate what you see rather than assuming pouch adhesive caused the color change.

Stoma / output findingMeaningAction
Beefy red, moistExpected perfusionRoutine pouch and skin care
Purple, dusky, black; sluggish refillIschemiaNotify surgical team now
Ileostomy high liquid outputFluid/electrolyte loss riskHydration watch; empty at ⅓-½ full
Pouch leaking under sealSkin breakdown setupResize wafer; protect peristomal skin

Ileostomy output is typically higher and more liquid than a descending colostomy, so fluid and electrolyte losses matter; dehydration and electrolyte shifts show up faster. Empty the pouch when it is about one-third to one-half full so the weight does not peel the seal and leak onto the skin. Skin care around the stoma protects the seal; a leaking pouch that sits on skin is a dermatitis setup, not just a mess. New ostomy teaching includes diet progression as ordered, gas and odor expectations, and when to call (no output with cramping, high output with dizziness, stoma color change).

Safety

Purple stoma with sluggish refill = ischemia, notify now. Do not wait for the next pouch change to “see if it pinks up.”

The distractor that looks helpful is antidiarrheals for watery stool without checking for impaction, raising or delaying action on a dusky stoma, or waiting until the pouch is overflowing before emptying. Another miss: treating opioid constipation only after days of no stool when prevention was already indicated. Name the obstruction or the perfusion problem first.

Priority map

PictureFirst move
8h postop, no void, restlessBladder scan/cath pathway
UO 20 mL/hrAssess and escalate
Watery stool + hard distended abdomenImpaction assessment
Dusky stomaNotify surgical team now
Catheter bag on the mattressLower bag below bladder; teach

Must know

  1. 1Stress incontinence: leak with cough/laugh; Kegels, weight, timed voiding teaching.
  2. 2Urge: sudden strong need; bladder training/anticholinergics as ordered.
  3. 3Overflow: dribble from retention; treat the retention, not just the drip.
  4. 4Postop no void ~6-8 hours or urge with inability: bladder scan/straight cath per protocol.
  5. 5Urine output under 30 mL/hr: assess and escalate.
  6. 6CAUTI prevention: sterile insertion, closed system, bag below bladder, empty before transport, remove ASAP.
  7. 7Watery stool with abdominal distention after opioids: think overflow around impaction.
  8. 8Enema: left Sims position commonly.
  9. 9Stoma: beefy red/moist expected. Purple/dusky/black with poor refill = ischemia; notify now.
  10. 10Ileostomy: higher liquid output, fluid/electrolyte watch; empty pouch when ~⅓-½ full.

Memory hooks

  • Purple stoma = call now

    A dusky or purple stoma with sluggish refill means ischemia until proven otherwise.

  • Watery plus full belly = impaction

    Overflow diarrhea around a hard stool mass is not a green light for more antidiarrheals alone.

  • Bag below bladder always

    A catheter bag on the bed or above the bladder invites infection and reflux.

On the exam

How it's tested

Stems ask which incontinence type, what to do after 8 hours without voiding, cloudy thinking about watery stool with distention, or a dusky stoma. Distractors raise the catheter bag or massage a purple stoma.

Fire safety

More in foundations of care