Free COCN Exam Flashcards

Place the mark within the rectus abdominis muscle on a flat surface the patient can actually see, away from scars, creases, the belt line, the umbilicus, and bony prominences. The site is confirmed with the patient supine, sitting, standing, and bending forward, because abdominal contours change with position.

A healthy stoma is beefy red to pink, moist, and shiny. Duskiness, purple, or black tissue indicates impaired perfusion or necrosis and must be reported to the surgeon immediately so the depth of ischemia can be evaluated.

The stoma is intestinal or urinary mucosa without somatic sensory nerve endings, so handling is painless and a small amount of bleeding during cleaning is expected. Pain reported at the stoma usually arises from peristomal skin, fascia, or the abdominal wall and needs separate assessment.

A loop stoma brings a bowel loop to the surface with two openings, a proximal functioning limb and a distal nonfunctioning limb, and is often supported initially by a rod or bridge. An end stoma has one opening; loop stomas are typically larger, more oval, and more often intended to be temporary.

An ileal conduit is incontinent and drains continuously into a pouch. A continent cutaneous reservoir, such as an Indiana or Kock pouch, is emptied by scheduled catheterization through a stoma. An orthotopic neobladder is joined to the urethra, so the patient voids without a stoma.

Sigmoid colostomy output is formed to pasty and lower in volume because the colon has absorbed water. Ileostomy output is liquid to porridge-like, higher in volume, and enzyme-rich, so a leak damages peristomal skin far faster.

Retraction is a stoma that sits at or below skin level, often from tension on the bowel, weight gain, or scarring. Effluent then tracks under the barrier instead of into the pouch, so a flat barrier usually fails and convexity, often with a belt, is typically needed to restore the seal.

Prolapse is telescoping of bowel outward, creating an elongated, often edematous stoma that threatens the pouch seal and, rarely, viability. Stenosis is narrowing at the skin or fascia and presents with ribbon-like stool, cramping, or reduced output.

A peristomal bulge that enlarges with standing, coughing, or straining and flattens when the patient lies down, usually with new pouch seal failure and cramping. No output combined with pain, distention, or vomiting suggests incarceration and needs urgent surgical evaluation.

Separation of the stoma from the peristomal skin at the suture line, ranging from a shallow partial defect to a circumferential one. Assess depth, undermining, and signs of infection, then treat it as a wound managed underneath a continued pouching system.

Irritant contact dermatitis from effluent, a form of peristomal moisture-associated skin damage, is the most frequent complication. The erythema and denudement mirror the shape of the leak path, so a wedge of damage at one clock position points directly to the fit problem to correct.

Assess manual dexterity, vision, cognition, and health literacy, plus caregiver availability and whether the patient can see the stoma. These findings decide whether a cut-to-fit two-piece system is realistic or whether precut barriers, a one-piece system, or caregiver-delivered care is safer.

Size the opening to the stoma with roughly 1/8 inch (about 2 to 3 mm) of clearance. An opening that is too large exposes skin to effluent and causes irritant dermatitis, while one that is too tight can lacerate the stoma, cause bleeding, and worsen edema.

Convexity is used when the stoma is flush, retracted, or telescoping, or when the peristomal plane is soft or creased, because it presses the surrounding skin down and pushes the stoma outward. Selection weighs stoma height and shape, output, peristomal topography, and abdominal tone, using the least depth that achieves a seal.

Rings and paste are fillers that level a dip, crease, or scar so the barrier can sit flat; they do not treat skin. Skin barrier powder is applied only to denuded, weeping skin to absorb moisture so the adhesive can bond.

Transit time is short and most of the colon is bypassed, so these forms can reach the pouch intact and deliver little drug. Recommend liquid, chewable, or immediate-release formulations and teach the patient to inspect output for whole tablets.

Limit hypotonic fluids such as plain water and juice, which worsen sodium loss, and add a sodium-glucose oral rehydration solution, with antimotility agents such as loperamide taken before meals under provider order. Published thresholds for high output vary, so act on the output trend plus dehydration signs rather than one number.

Cleanse the stoma, then catheterize the conduit with a sterile catheter and collect urine directly from inside it. A specimen poured from the pouch or its spout is contaminated with skin and pouch flora and must not be sent.

Urine is produced continuously, and an overfilled pouch pulls on the barrier until the seal fails or urine refluxes onto the skin. Keep the tubing and collection bag below the level of the stoma so drainage stays one-way.

Output is commonly grouped as low (under about 200 mL in 24 hours), moderate (about 200 to 500 mL), and high (over about 500 mL). Higher volume shifts containment toward pouching for accurate measurement and skin protection, while low-output tracts can often be managed with absorptive dressings.

It is a somatostatin analogue used as an adjunct to reduce gastrointestinal secretion volume, which makes containment and fluid balance easier. It does not close the fistula on its own, so nutrition, sepsis control, and perifistular skin protection remain the priorities.

Securing the tube limits in-and-out movement and side-to-side torque that produce exit-site leakage, hypergranulation, and skin breakdown. Tension is checked rather than maximized, because an internal bolster pulled too tightly against the abdominal wall can cause buried bumper syndrome.

A gastrostomy tract is not considered mature until roughly four to six weeks, and an immature tract can begin closing within hours. Do not blindly reinsert; cover the site, keep the patient NPO, and notify the provider immediately for replacement with confirmation of placement.

Irrigation suits patients with a descending or sigmoid colostomy producing formed stool who have adequate dexterity, cognition, and no stenosis, prolapse, hernia, or active bowel disease. It is performed on a regular schedule using roughly 500 to 1,000 mL of lukewarm water instilled through a cone tip.

Stop solid food, take warm fluids, and try a warm bath with gentle abdominal massage or a knee-chest position, and enlarge the barrier opening to accommodate stomal edema. If output stops completely or vomiting, distention, or severe cramping develops, the patient needs urgent evaluation rather than further home measures.

It is drained by intermittent catheterization through the stoma on a fixed schedule, commonly every four to six hours once the pouch has matured, with a small absorbent dressing over the stoma instead of a pouch. Skipped catheterizations overdistend the reservoir and risk perforation, so the schedule is not optional.

This is alkaline encrustation from concentrated, alkaline urine, which causes bleeding, pain, and seal failure. WOCN guidance is a dilute white-vinegar soak of roughly 30 to 50 percent vinegar in water applied to the affected skin for about 20 minutes at pouch changes, plus increased fluid intake to keep urine dilute and acidic.

Wart-like gray to red papules form where urine sits against skin, almost always because the barrier opening is cut too large or the barrier is worn too long. Remeasuring and resizing the opening and restoring a dry seal is the primary treatment; persistent lesions may be cauterized with silver nitrate.

Dust the weeping skin with skin barrier powder, brush off the excess, then seal it with an alcohol-free skin barrier wipe or spray and let it dry, repeating for two or three thin layers. The result is a dry, tacky surface the adhesive barrier can bond to.

Apply an antifungal powder such as nystatin to the affected skin, seal it using the crusting technique, and correct the moisture source causing it. Creams can interfere with adhesion under the barrier, so powder is preferred; if a cream is used, rub it in thoroughly and seal it with a no-sting barrier film.

Friable overgrown tissue is typically cauterized with silver nitrate by a qualified clinician, and then the cause is corrected, whether that is tube movement, chronic moisture, or a barrier edge rubbing the mucosa. Without removing the irritant, the tissue simply regrows.

Cleanse the defect, fill it lightly with an absorptive filler such as barrier powder, calcium alginate, or hydrofiber, then cover with a barrier ring or paste and reapply the pouching system. Packing tightly or leaving the defect exposed to effluent delays healing and can deepen the separation.

Management pairs leak and pressure control with anti-inflammatory therapy: topical or intralesional corticosteroids or calcineurin inhibitors, escalating to systemic agents or biologics alongside treatment of underlying inflammatory bowel disease. Avoid debridement, convex barriers, and tape over the lesion, because pathergy can enlarge the ulcer.

Use a flexible one-piece or cut-to-fit barrier with an opening large enough to clear the rod without leaving skin exposed, and seal the gaps beneath the rod with a ring or paste. The rod is removed only on the surgeon's order, commonly within the first one to two weeks after surgery.

No output with cramping, distention, or vomiting; a stoma turning dusky, purple, or black; persistent bleeding from the stoma; a sudden change in stoma size; and fever with severe peristomal pain. These indicate obstruction, ischemia, or infection rather than normal adjustment.

Teach the warning signs, including dark or scanty urine, dry mouth, dizziness on standing, fatigue, and muscle cramps, and the response of drinking an oral rehydration solution rather than plain water while contacting the care team. Dehydration is a leading cause of hospital readmission after ileostomy creation.

Chew thoroughly, eat small frequent meals, and reintroduce high-fiber foods one at a time with adequate fluid, watching common culprits such as nuts, popcorn, corn, mushrooms, celery, and citrus membranes. Risk is highest in the first weeks after surgery while the lumen is still edematous.

The conduit or reservoir is built from bowel, so cloudy shreds of mucus in the urine are expected permanently and are not a sign of infection. Foul odor, persistent cloudiness with flank or back pain, fever, or bloody urine should be reported.

Empty when the pouch is about one-third to one-half full. A heavier pouch pulls on the edge of the barrier, breaks the seal, and makes leakage and peristomal skin damage far more likely.

Yes. Water does not harm the stoma, and bathing with or without the pouch is safe. Advise plain water or a residue-free soap, because oils, moisturizers, and deodorant soaps leave a film that prevents the next barrier from adhering.

Walk early, respect the surgeon's lifting restriction during initial healing, then rebuild core strength gradually and use a support garment or hernia belt for heavy work and resistance exercise. Most activities, including swimming, are possible once healing is complete.

Pelvic dissection can injure autonomic nerves, producing erectile or ejaculatory dysfunction in men and dyspareunia or reduced lubrication in women, separate from body-image concerns. Raise the topic proactively, discuss pouch security and positioning, and refer for urologic, gynecologic, or counseling support.

Carry at least twice the expected supplies, keep a set in hand luggage split from checked bags, and precut barriers before flying because scissors may be restricted. Store supplies away from heat and carry a travel communication card plus the ostomy nurse's contact information.

Typical referrals include outpatient WOC or ostomy nursing follow-up, a durable medical equipment supplier for reliable product access, dietitian and social work or financial counseling, and peer support through a national ostomy association or local group. Structured handoff communication prevents supply gaps and unintended product substitutions.

Goals must be patient-defined, measurable, and time-bound, such as the patient independently completing a pouch change before discharge, rather than a vague statement about adapting. Setting them with the patient and caregiver lets priorities like returning to work or intimacy shape the plan.

Measure at every change for roughly the first six to eight weeks, because postoperative edema resolves and the stoma shrinks. Continuing to use the original template leaves skin exposed to effluent, so barrier openings and any precut supply orders must be updated as size changes.

Skin is thin and easily stripped, and the abdomen offers little flat space between the stoma, umbilicus, and incision, so pouches often must be downsized or customized. Plan to minimize adhesive trauma, limit unnecessary accessories, and center teaching and weight-based fluid monitoring on the parents.

Deep creases, a pendulous abdomen, and a stoma the patient cannot see cause flat barriers to fail and make self-care difficult. Plan for convexity with a belt, a mirror or adjusted seating for visualization, and discussion with the surgeon when the stoma sits in a fold or below the panniculus.

A consistent leak location points to peristomal topography, such as a crease, scar, or dip at that point, rather than defective adhesive. Reassess contours with the patient sitting and standing and fill the defect with a ring, paste, or convexity instead of simply switching brands.

Revise whenever function or circumstances change, including new arthritis, vision loss, cognitive decline, significant weight change, a developing parastomal hernia, or a move to a new care setting. Modifications may include precut barriers, a one-piece system, caregiver training, or a home health referral.