Clinical Skills · Wound and Burn Assessment and Care
Wound Assessment
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In 30 seconds
Wound assessment is the systematic gathering of information about a wound — its history, location, size, Wound bed The exposed tissue at the base of the wound Full entry →, drainage, surrounding skin, and signs of healing or infection — performed consistently so findings can be compared from one visit to the next. It is the foundation of the whole wound care process: dressing choices, treatments, and referrals are only as good as the assessment behind them. Assessment is not a one-time look. The same wound is examined again and again over days or weeks, and the real value comes from comparing today's findings with yesterday's. A structured approach keeps observations objective, complete, and useful to every member of the care team.
This is an educational study guide, not clinical guidance. Actual assessment forms, measurement techniques, and documentation tools vary by facility, state scope of practice, and provider orders.
Why this matters
Wounds are among the most common reasons people seek healthcare, and the nurse is usually the clinician who sees the wound most often. Careful, repeated assessment catches problems early — infection, failing healing, or a developing pressure injury — when they are easiest to address. Accurate measurement and documentation also protect the person and the nurse: the record shows what was observed, what was done, and how the wound changed over time. Consistent assessment language improves handoffs between shifts, supports appropriate referrals (such as to a wound-care specialist), and lets the team judge whether treatment is actually working. In many settings, pressure-injury prevention is a tracked quality measure, and good assessment is where that work begins.
The college version
Core Concepts
Assessment starts with the story
Before looking at the wound, gather the history. Ask how and when the injury happened, what has been done since, and whether this is a new wound or a chronic one. Then learn about the person's overall health: conditions that slow healing (such as diabetes or circulation problems), medications, nutrition, and whether the person uses tobacco. Context matters because a surgical incision, a pressure injury, and a leg ulcer can look similar at a glance yet have very different causes and very different care plans. Assessment pairs the story with the exam — one without the other is incomplete.
Look at the whole wound, not just the hole
A complete inspection covers: location (which body site, and whether it sits over a bony area), size (length, width, and depth), wound bed — the tissue at the base: healthy red Granulation tissue New red, moist connective tissue and blood vessels forming during healing Full entry →, pale pink epithelial tissue creeping in from the edges, yellow Slough Soft yellow/white nonviable tissue Full entry → (soft, stringy nonviable tissue), or black necrotic Eschar Thick, dry, often black dead tissue Full entry →, Exudate Fluid that drains from a wound Full entry → (amount, color, consistency, odor), edges (attached, rolled, or open), Peri-wound skin The skin immediately surrounding the wound Full entry → (Maceration Soft, pale, waterlogged skin around a wound Full entry →, redness, warmth, swelling, or breakdown), and tunneling or undermining (pockets of tissue loss beneath intact skin that a surface view misses). Each finding is described in plain, observable terms — what you see, not what you conclude.
Measure and document the same way every time
Measurements are only useful if they are reproducible. Use the same ruler or device, measure the same axes (commonly the longest length and widest width, with depth at the deepest point), and use the same convention (for example, a clock face) to describe where tunneling or undermining is located. Many facilities use a standardized wound documentation form or electronic tool — use it consistently. Photographs, where facility policy permits, are a powerful supplement because they capture what words cannot. Note whether the person experienced pain during the assessment and what made it better or worse.
Interpret with the healing process in mind
Wound healing proceeds through overlapping phases: hemostasis (clotting to stop bleeding), inflammation (cleaning and defense), proliferation (new tissue and blood vessels), and maturation (remodeling and strengthening). Wounds heal by primary intention (edges closed, as in a sutured surgical incision), secondary intention (edges left open, healing from the base upward), or tertiary intention (delayed closure after infection is controlled). The assessment's job is to place the wound in this process: granulation tissue signals progress; deepening, expanding, or unchanging wounds signal a stall — often from infection, pressure, poor nutrition, or repeated trauma. A single assessment is a snapshot; a series of assessments is the movie.
Common Confusions
| Do Not Confuse | With | Difference |
|---|---|---|
| Any redness around a wound | Infection | Redness is also part of normal inflammation; suspect infection with spreading redness, warmth, purulent drainage, new odor, or worsening pain |
| A smaller wound surface | Healing overall | Depth, tunneling, and undermining can worsen while the surface shrinks — measure all dimensions |
| Yellow tissue | Pus | Yellow tissue is often slough (nonviable tissue), not necessarily infected drainage |
| More drainage = always bad | Wound status change | Drainage is judged against wound size and phase; a sudden increase or change in character is the real clue |
| "Healing well" | "Needs no further assessment" | Healing wounds still need monitoring; complications can develop at any point |
| A dressing covering the wound | A completed assessment | The assessment happens before the dressing goes on — and again at every change |
Eli explains
The same idea, in plain words
Explain it like I’m 10
A wound assessment is like taking notes about a scrape so you can tell if it's getting better. You write down where it is, how big it is, what color the bottom is, and whether it's leaking or smelly. The next day you check again — if it's smaller and pinker, it's healing; if it's redder, bigger, or oozing more, something is wrong and you need to tell a grown-up (the provider) right away.
Worked example
Marcus is three days post-op after abdominal surgery. The nurse follows the same sequence she uses for every wound: she asks about pain and any fever, then inspects the incision. The edges are well approximated (closed together), there is mild redness along the suture line, and a small amount of thin, slightly pink drainage on the dressing — all consistent with normal inflammation for this phase of healing. She measures the incision with the same ruler used yesterday, checks the surrounding skin for warmth or swelling, and documents everything on the facility's wound form, noting "no odor, pain 2/10." The next morning Marcus reports increased pain. The nurse removes the dressing and finds purulent drainage, spreading redness, and warmth. Because her baseline assessment is documented, the change is unmistakable — she reports it to the provider immediately and documents the new findings before the dressing is changed again. The early, structured catch makes the difference between a wound treated quickly and one left to worsen.
Key takeaways
- Structure beats impression: every assessment covers history, location, size, wound bed, exudate, edges, peri-wound skin, and pain — in a consistent order.
- Compare, don't just describe: the clinical value is in change over time (bigger/smaller, wetter/drier, redder/pinker).
- Describe tissue accurately: granulation (red) and epithelial tissue (pink) indicate healing; slough (yellow) and eschar (black) do not.
- Separate observation from interpretation: "5 cm, moist, with red tissue" is observation; "healing well" is interpretation — record both, but know which is which.
- Baseline matters: without a documented first assessment, later comparisons are guesswork.
- Report and escalate: spreading redness, warmth, new odor, purulent drainage, worsening pain, or fever are findings to report promptly — the plan of care may need to change.
Check yourself
5 review questions from the chapter. Try each one, then open the answer.
List the core components of a complete wound assessment.
Show answer
History, location, size (length × width × depth), wound bed tissue, exudate, edges, peri-wound skin, tunneling/undermining, and pain — documented consistently.
Why must measurement technique stay the same from visit to visit?
Show answer
Consistent technique makes measurements comparable over time; that comparability is what reveals true change (healing or deterioration).
How would you tell normal inflammation from a suspected wound infection?
Show answer
Normal inflammation: mild redness, slight warmth, thin serosanguineous drainage in the early phase. Suspected infection: spreading redness, increasing warmth, purulent drainage, new or worsening odor, increasing pain, or systemic signs such as fever.
Name the four overlapping phases of wound healing in order.
Show answer
Hemostasis, inflammation, proliferation, maturation.
Why is a documented baseline essential even when the wound appears unchanged?
Show answer
The baseline is the reference point for every later comparison; without it, the team cannot tell whether the wound is improving, stalling, or worsening.
Study tools & related lessonsKey vocabulary · Related
Key vocabulary
- Wound bed
- The exposed tissue at the base of the wound
- Exudate
- Fluid that drains from a wound
- Granulation tissue
- New red, moist connective tissue and blood vessels forming during healing
- Slough
- Soft yellow/white nonviable tissue
- Eschar
- Thick, dry, often black dead tissue
- Maceration
- Soft, pale, waterlogged skin around a wound
- Tunneling / undermining
- Pockets of tissue loss beneath intact skin
- Peri-wound skin
- The skin immediately surrounding the wound
- Serosanguineous
- Thin, watery drainage that is clear to slightly pink
Sources & references
This lesson was adapted from the open educational references above; their licenses and attributions are preserved. See Copyright & Licensing.
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