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WCC exam study guide by domain

Source: NAWCO's WCC Candidate Examination Handbook Verified Nov 6, 2026

This WCC exam study guide takes the seven domains of the current outline one at a time: the weight, what the questions ask and where answers tend to go wrong. Assessment (27%) and Treatment (25%) carry about half the exam between them.

On this page · 12 sections
  1. Where the points are
  2. Assessment: 27%
  3. Treatment: 25%
  4. Re-Evaluation: 16%
  5. Risk and Prevention: 12%
  6. Education: 7%
  7. Administration: 7%
  8. Legal: 6%
  9. 18 sample questions by domain
  10. WCC pages
  11. Sources
  12. Studying for the WCC

Where the points are

Weights come from the candidate handbook (the outline in use since November 2023). There are 100 scored questions, so each percentage point of weight is roughly one question. The seven domains in order of weight:

Study time can follow the same order. The two largest domains reward wound recognition and product reasoning; the four smallest are short but easy points if the definitions are firm.

Assessment: 27%

Questions ask you to name a wound's cause and status from what you see and measure: pressure, diabetic, venous, arterial, surgical, traumatic or atypical; partial or full thickness; acute or chronic. Around that sit labs (albumin, prealbumin, A1C, CBC), nutrition, swallowing and hydration, psychosocial factors, history and comorbidities, pain scales matched to age and the ability to self-report, cognition and function, and risk tools: Braden and its pediatric versions, Norton, and the Wagner and University of Texas systems for the diabetic foot.

Arterial or venous?

The two ulcer types get swapped. Venous ulcers sit in the gaiter area with irregular edges, heavy drainage and edema. Arterial ulcers favor the toes, feet and shin, look punched out with a pale, dry base, hurt more on elevation, and call for an ABI before any compression. A second trap is reverse staging: a healing stage 4 pressure injury is documented as a healing stage 4, never as a stage 2.

Treatment: 25%

Product questions are framed by the wound in front of you: how much exudate, whether infection or dead tissue is present, what the periwound skin tolerates, and what the formulary and the patient's coverage allow. The outline also lists adjunctive therapy (NPWT, including instillation; compression; offloading and total contact casting; support surfaces; hyperbaric oxygen), further tests such as culture, biopsy, ABI and TcPO2, referrals, and wound bed preparation with its debridement methods.

The wrong dressing on the wrong wound

Distractors put an occlusive hydrocolloid on a heavily draining or infected wound, compression on a limb with poor arterial flow, or sharp debridement on a dry, stable heel eschar. For NPWT, know the contraindications: untreated osteomyelitis, malignancy in the wound bed, exposed vessels or organs, and necrotic tissue covered by eschar.

Re-Evaluation: 16%

This domain asks whether the plan is working and what to change when it is not. You compare measurements week by week, judge tolerance (pain at dressing changes, skin reactions) and adherence, and place the wound in a phase of healing: inflammatory, proliferative or remodeling. Healing tools appear by name, so learn what each one tracks and what it leaves out.

Changing course at the wrong time

A plan deserves a fair trial of a few weeks before it is called a failure, yet a wound that stays static after that trial calls for rechecking the cause, not another dressing of the same kind. Keep healing scores and staging apart: a score follows change over time; it does not restage the wound.

Risk and Prevention: 12%

Prevention items turn on the source of damage: pressure and shear from beds, chairs and medical devices; moisture from incontinence, sweat or drainage; skin tears from friction; and medications that thin skin or dull sensation. Expect repositioning schedules, support surface selection, heel offloading and device checks.

Moisture damage or pressure injury?

Moisture-associated damage is diffuse, follows where the moisture sits (skin folds, the perineum) and has irregular edges; a pressure injury sits over a bony prominence or under a device. Heels are floated off the bed rather than cushioned on ring-shaped devices, and side-lying turns are tilted to about 30 degrees instead of a full 90.

Education: 7%

Small in weight, concrete in content: who should be taught (often the caregiver who will do the care at home), how to confirm learning (teach-back, return demonstration), how to fit materials to health literacy, and how to teach the wider care team.

The longest handout is rarely the answer

Teaching aimed at someone who will not perform the care is a common distractor; so is a dense written packet handed to a patient who struggles to read.

Administration: 7%

These items come from the program side of wound care: protocols built on evidence, plans that fit the formulary and facility policy, the choice of education media, prevalence and incidence data, and work with payers, case managers and the next care setting.

Prevalence and incidence

Prevalence counts everyone with the condition at one point in time; incidence counts only new cases that develop over a period. A wound documented as present on admission is not a new, facility-acquired case, which is why admission skin checks matter for the data.

18 sample questions by domain

18 questions in this set · 0 answeredRunning tally: 0 of 0 correct
Question 1 of 18 · Assessment · 27%

Months after amputation of the second toe, a patient with neuropathy develops a new ulcer under the third metatarsal head. What most likely explains this?

  1. Pressure shifted to a nearby area
    Removing a toe changes how the forefoot bears load, and the neighboring metatarsal head takes the extra pressure, a transfer lesion; shoes and insoles need re-fitting after any amputation.
  2. Recurrence at the amputation site
    The new ulcer lies under the third metatarsal head, not at the healed second-toe site, so it is not a recurrence of the original wound.
  3. A new venous ulcer
    Venous ulcers form around the ankles in the gaiter area; a plantar forefoot ulcer in a neuropathic foot points to pressure.
  4. An allergic reaction to the insole
    An insole allergy would cause redness and itching wherever the material touches, not one ulcer under a single weight-bearing bone.

Select an answer to record it. The card then marks the key and opens the reasoning under every choice.

Question 2 of 18 · Assessment · 27%

A smoker with an arterial leg ulcer says, 'I've bought nicotine patches and I'm quitting on Monday.' Which stage of change is this, and what should the nurse do?

  1. Preparation; help him plan for triggers and support
    A set quit date plus a concrete step such as buying patches marks the preparation stage, where the nurse helps him build a specific plan for triggers, patch use and support.
  2. Action; praise him for having quit
    Action begins only once he has actually stopped smoking; he has not quit yet, so praise for quitting skips the planning he needs now.
  3. Precontemplation; give him information on the risks
    Precontemplation means no intention to change; he already has a date and patches, so basic risk information is far behind where he is.
  4. Contemplation; explore the pros and cons of quitting
    Contemplation is ambivalence without commitment; weighing pros and cons would pull a committed patient back a step.
Question 3 of 18 · Assessment · 27%

A Stage 2 pressure injury is reassessed after 10 days. Which finding best indicates that it is healing?

  1. Red granulation tissue filling the base
    Granulation fills full-thickness defects; finding it in the base would mean the wound is deeper than Stage 2.
  2. Pink epithelium at edges and islands
    A Stage 2 injury is partial thickness and heals by new epithelium growing in from the edges and from surviving hair follicles, seen as pink edges and islands.
  3. Contraction drawing the edges inward
    Contraction pulls the edges of full-thickness wounds together; a partial-thickness wound closes by resurfacing instead.
  4. Yellow fibrin forming across the base
    Yellow fibrin or slough is not a healing sign, and slough is not part of a Stage 2 injury by definition.
Question 4 of 18 · Treatment · 25%

At re-evaluation after 5 weeks, a wound is 40% slough, 40% granulation and 20% epithelium. The patient is receiving chemotherapy, with an absolute neutrophil count of 400/mm³ and platelets of 30,000/mm³. Which debridement method is most appropriate?

  1. Conservative sharp debridement
    Conservative sharp debridement cuts tissue, which with platelets at 30,000/mm³ carries a real bleeding risk, and severe neutropenia raises the infection risk of any new break.
  2. Collagenase enzymatic debridement
    Collagenase digests the collagen that anchors slough without cutting tissue, so it clears the 40% slough selectively in a patient who cannot safely bleed.
  3. Wet-to-dry gauze debridement
    Wet-to-dry gauze is nonselective: it tears away the granulation and new epithelium that already cover 60% of this wound, and it is painful.
  4. Autolytic debridement under a hydrocolloid
    Autolysis relies on the patient's own white cells under an occlusive cover, a poor match for an absolute neutrophil count of 400/mm³.
Question 5 of 18 · Treatment · 25%

A patient cries out during bedside conservative sharp debridement of a leg ulcer, and the procedure is stopped. Which change is most appropriate for the next session?

  1. Debride faster to shorten the pain
    Working faster does not lessen the pain of each cut and makes the procedure less precise; the problem is unrelieved pain, not its length.
  2. Apply topical anesthetic well ahead
    A topical anesthetic such as a lidocaine cream needs dwell time on the bed before it works, so applying it well before the next session directly targets procedural pain.
  3. Switch to wet-to-dry dressings instead
    Wet-to-dry gauze is itself painful and nonselective, so it trades one painful session for a painful daily change.
  4. Skip analgesia to judge the pain level
    Withholding pain relief to gauge pain is never appropriate; pain is assessed by asking and observing, then treated.
Question 6 of 18 · Treatment · 25%

A patient with a mixed arterial-venous ulcer was kept on reduced compression because the ABI was 0.6. After successful revascularization the ABI is 0.9. How should compression be revised?

  1. Keep the same reduced compression
    Reduced compression was a safety limit for an ABI of 0.6; keeping the same reduced level after the ABI improved undertreats the venous disease.
  2. Wear compression at night instead
    Venous pressure is highest with the legs down during the day, so compression worn at night instead misses the hours it matters most.
  3. Hold compression until the ulcer heals
    Holding compression until the ulcer heals leaves the venous component, which drives this ulcer, untreated just as it has become safe to treat.
  4. Move to full-strength compression
    With the ABI now 0.9, arterial flow supports full-strength compression, so the venous part of the mixed ulcer can finally be treated fully.
Question 7 of 18 · Re-evaluation · 16%

A clinician wants to track the healing of a Stage 4 pressure injury, capturing depth, undermining and edge characteristics over time. Which instrument is most appropriate?

  1. Bates-Jensen Wound Assessment Tool (BWAT)
    The BWAT scores 13 items, among them depth, edges, undermining, necrotic tissue and exudate, so it follows exactly the features this clinician wants to track.
  2. Braden Scale for Predicting Pressure Sore Risk
    The Braden Scale predicts the risk of developing a pressure injury; it does not describe or track an existing wound.
  3. Wagner classification
    The Wagner classification grades diabetic foot ulcers by depth and gangrene at one point in time; it does not follow pressure injuries over time.
  4. Pressure Ulcer Scale for Healing (PUSH)
    PUSH tracks healing with only three items, area, exudate amount and tissue type, so it misses depth, undermining and edges.
Question 8 of 18 · Re-evaluation · 16%

A wound clinic wants one measure to compare healing rates between wounds of very different sizes. Which measure is most appropriate?

  1. Absolute change in area in square centimeters
    A 2 cm² decrease is half of a 4 cm² wound but a tenth of a 20 cm² wound, so absolute change favors large wounds.
  2. Change in the PUSH exudate subscore
    The exudate subscore reflects drainage, not size, so it cannot compare healing rates.
  3. Percent change in area from baseline
    Percent change scales each wound to its own starting size, so a small and a large wound can be compared on the same footing.
  4. Change in the longest single dimension
    A single dimension ignores changes in width and shape, so it can suggest progress or stalling that the area does not show.
Question 9 of 18 · Re-evaluation · 16%

A pressure injury measures 2.5 cm × 1.4 cm. Using PUSH, what is the length × width subscore?

  1. 4
    A subscore of 4 is the 1.1 to 2.0 cm² band, which would fit a wound about half this size.
  2. 6
    2.5 × 1.4 = 3.5 cm², which falls in the PUSH band of 3.1 to 4.0 cm², scored 6.
  3. 7
    A subscore of 7 covers 4.1 to 8.0 cm²; 3.5 cm² sits just below that band.
  4. 5
    A subscore of 5 covers 2.1 to 3.0 cm², one band too low for an area of 3.5 cm².
Question 10 of 18 · Education · 7%

A patient with a venous ulcer is losing motivation to wear compression because 'nothing is changing,' yet weekly tracings show the wound has clearly shrunk over 5 weeks. What is the BEST response?

  1. Stop the weekly measurements
    Stopping the measurements removes the very evidence that would show the patient the plan is working.
  2. Switch to a different dressing
    Switching a dressing that is producing steady shrinkage has no clinical basis; the problem is the patient's perception, not the product.
  3. Review the measurements and photos together
    Steady shrinkage is real progress the patient cannot see day to day; reviewing the measurements and photos together turns it into evidence and supports staying in compression.
  4. Tell the patient healing is always slow
    Telling the patient that healing is always slow does not answer the belief that nothing is changing, and the data show that something is.
Question 11 of 18 · Education · 7%

A caregiver will use a heel-offloading boot for her husband at home. Which instruction is most important to include?

  1. Check the skin under the straps each day
    An offloading boot is itself a device that can injure the skin, so the skin under its straps and edges is inspected at least daily.
  2. Never take the boot off
    A boot that is never taken off cannot be checked, and the skin under it can break down unseen.
  3. Put it over thick socks with seams
    Bulky socks with seams create ridges of pressure inside the boot, the opposite of offloading.
  4. Pull the straps as tight as possible
    Straps pulled as tight as possible concentrate pressure and can cause a device-related injury of their own.
Question 12 of 18 · Administration · 7%

The product evaluation committee is running a 30-day trial of a new foam dressing. Which data set best supports the formulary decision?

  1. Dressing counts compared with the current foam
    Counting dressings against the current foam hints at wear time and cost, but a count alone cannot decide the formulary question.
  2. Staff satisfaction ratings for ease of application
    Staff satisfaction with ease of application matters for use, but it does not show whether the product protects skin or improves wound outcomes.
  3. Wear time, periwound skin condition and wound outcomes
    Clinical performance, meaning how long the foam stays on, what happens to the surrounding skin and whether wounds progress, is what shows the committee whether the product works.
  4. Unit price, vendor rebates and the delivery schedule
    Purchase price and rebates ignore how often the dressing must be changed and how well it performs, which drive the real cost.
Question 13 of 18 · Administration · 7%

A nursing home expects its annual survey and wants to test how well its pressure injury program works in practice. Which activity best prepares it?

  1. Adding staff sign-offs on the existing policy
    Signatures prove staff have read the policy, not that they follow it at the bedside.
  2. Increasing Braden scoring to every shift
    Scoring more often adds work but does not test whether a high-risk score leads to the right actions.
  3. Rewriting the pressure injury policy
    Rewriting the pressure injury policy changes how it reads on paper and tells the facility nothing about practice.
  4. Running mock tracers on affected residents
    A mock tracer follows affected residents through assessment, care planning, interventions and revision, the way surveyors do, and shows where daily practice departs from policy.
Question 14 of 18 · Legal · 6%

A resident with a sacral wound has lost decision-making capacity. The resident's appointed health care agent wants conservative wound care only, while the resident's two adult children want surgical flap closure. Whose decision should guide the plan?

  1. The health care agent, using the resident's wishes
    A legally appointed health care agent speaks for a resident who lacks capacity, deciding as the resident would have wanted, and ranks ahead of other relatives.
  2. The facility's ethics committee, by majority vote
    The ethics committee can be consulted about the family conflict, but it advises; it does not decide the resident's care by majority vote.
  3. The attending physician, based on medical benefit
    The physician explains the options and their benefits and burdens, but the choice belongs to the resident's representative.
  4. The adult children, as the closest blood relatives
    Being blood relatives does not override the person the resident chose in advance; the children are heard, but the agent decides.
Question 15 of 18 · Legal · 6%

Serial photographs of a heel wound suggest its size changes from week to week although tracings are stable. Which technique change would most improve comparability of the photographs?

  1. Take a wide shot of the whole limb from the foot of the bed
    A wide shot of the whole limb shows location but leaves the wound too small to judge changes in size.
  2. Angle the lens to show depth, with a ruler
    Angling the lens to show depth foreshortens the wound, so its apparent size changes with the angle from week to week, and a ruler cannot undo that distortion.
  3. Zoom in so the wound fills the whole frame
    Zooming in to fill the frame changes the scale every week, so without a fixed guide the wound seems to grow or shrink.
  4. Keep a fixed distance, square on, with a ruler
    Photographs compare only when the camera sits at a fixed distance, square on to the wound, with a ruler in the frame to set the scale.
Question 16 of 18 · Prevention · 12%

A postoperative patient with a healing sacral Stage 3 injury is started on a continuous epidural infusion that numbs both legs. Which risk has increased most at re-evaluation?

  1. Contact dermatitis from the dressing
    A dressing allergy depends on the product and the skin; an epidural does not make it more likely.
  2. Skin tears on the forearms
    Forearm skin tears come from friction and handling, and the epidural does not affect the arms.
  3. Maceration from the epidural catheter
    Leakage at an epidural catheter site is small and local, far from the insensate heels that now bear unrelieved load.
  4. Unnoticed heel pressure damage
    Numb, weak legs mean the patient cannot feel heel pressure or move off it, so the heels need floating and more frequent checks.
Question 17 of 18 · Prevention · 12%

Two days after surgery, small blisters have formed along the edges of the tape that holds the dressing over a knee incision. The skin under the dressing is intact. What most likely caused this?

  1. Moisture from the incision
    Moisture from the incision would affect skin under the dressing, which is intact; the blisters sit at the tape edges, away from any drainage.
  2. Tape applied under tension
    Tape stretched as it is laid down, especially over a knee that swells and bends, shears the skin and raises tension blisters along the tape edges.
  3. Allergic contact dermatitis
    An allergy shows as itchy redness under the whole adhesive area, not as blisters confined to its edges.
  4. Surgical site infection
    Infection involves the incision itself with redness, warmth or drainage; blisters at the tape line are a mechanical skin injury.
Question 18 of 18 · Prevention · 12%

Each time an adhesive-bordered foam is removed from a patient's fragile leg skin, the patient reports pain and the skin is left red. The product is otherwise working well. Which change is most appropriate first?

  1. Tape the dressing more firmly at the edges
    Extra tape puts more adhesive on fragile skin and adds stripping at the next removal.
  2. Change the dressing every day instead
    Daily changes multiply the adhesive injuries that are already the problem.
  3. Use adhesive remover and peel low and slow
    An adhesive remover and a slow peel kept low along the skin, with the skin supported, cut stripping and pain; if damage continues, a silicone-adhesive product comes next.
  4. Pull the dressing off in one quick motion
    Pulling the dressing off in one quick motion strips the outer skin layer; speed does not make adhesive removal any gentler.

WCC pages

Sources

  1. [1]NAWCO: certification statistics nawccb.org, re-read Nov 6, 2026
  2. [2]NAWCO: WCC Candidate Examination Handbook, April 2024 (PDF) nawccb.org, re-read Nov 6, 2026

Studying for the WCC

Which WCC domain should I study first?

Assessment, the largest at 27%, then Treatment at 25%.

Is material on the five old WCC domains still useful?

Partly, for the clinical content, but not for planning: weights and domain names now follow the seven-domain form that replaced it in November 2023.

Are reference materials allowed in the WCC exam?

No. Candidates sit it without books, notes or other references, per the candidate handbook.