NCLEX-RN cheat sheet · Musculoskeletal and skin
Burns, wounds and pressure injuries
Burn depth, rule of nines, airway and fluids; drainage, dressings and drains; pressure injury stages
AI-checkedChecked by AI against current guidelines, with spot-checks by a registered nurse.
Airway first after an enclosed-space fire. Purulent drainage is never normal. Relieve pressure, and never massage red areas.
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At a glance
Burn depth
| Depth | Looks like | Pain |
|---|---|---|
| Superficial | Dry, red, like sunburn | Painful |
| Superficial partial | Moist, red, blistered | Extremely painful |
| Deep partial | Pale, drier; 3 weeks or more to heal | Less pain |
| Full-thickness | Leathery, white or black | May be numb |
Watch: Pain doesn't track severity: the deepest burns can be painless. Face, hands, feet, genitals or a major joint: especially serious.
Adult rule of nines
| Area | Percent |
|---|---|
| Head and neck; each arm | 9 each |
| Front of the trunk; back of the trunk; each leg | 18 each |
| Genitals | 1 |
Children: Use the age-adjusted Lund-Browder chart. The client's palm plus fingers is about 1%. Superficial burns don't count in the size.
Inhalation injury: airway first
- Suspect it after a fire in a closed space.
- Clues: singed eyebrows or nose hairs, burned lips, face or neck burns; a hoarse voice, wheezing, trouble breathing, dark sooty sputum.
- Airway swelling can close the airway; lung damage can take 2 to 3 days to show.
- Give oxygen when carbon monoxide is possible.
Emergency care
- Stop the burning, keeping rescuers safe. Electrical injury: power off before you approach.
- Early burn deaths come from airway or inhalation injury, other trauma, and shock: look for each.
- Small burns: cool water for at least 20 minutes, never ice. Large burns: cool only if still hot.
- Clean, dry cover; elevate burned limbs. No butter or ointments on a severe burn, no breaking blisters, nothing by mouth.
Fluid resuscitation
- Start IV fluid early through a large-bore catheter, two for burns over 20%, in unburned skin when possible. Keep the client warm.
- The formula estimates the total fluid for the first 24 hours from the time of burn, counting only partial- and full-thickness burns.
- Adult thermal burns (a federal guide): 2 mL lactated Ringer's × kg × percent burned; children 3, electrical 4. Starting estimates, not set doses; some references use 4 for adults, so follow the order.
- Then adjust the rate to perfusion, urine output and response. Too little harms organs; too much causes dangerous swelling.
Pressure injury stages
| Stage | What you see |
|---|---|
| Stage 1 | Intact skin, redness that doesn't blanch. In darker skin, compare color with baseline; check temperature, firmness, sensation |
| Stage 2 | Exposed dermis: a pink, viable wound bed, or a serum-filled blister. Not for moisture damage, skin tears or blood-filled blisters |
| Stage 3 | Full-thickness loss, fat visible, but no bone, tendon or muscle. May have undermining or tunneling |
| Stage 4 | Deep structures, like fascia, muscle, tendon or bone, exposed or directly palpable |
| Unstageable | Base hidden by slough (soft, yellow) or eschar (dark, leathery). Dry, stable heel eschar is usually left in place |
| Deep tissue | Persistent deep red, maroon or purple skin, or a blood-filled blister; can worsen quickly |
What it is: Skin or deeper tissue damage, usually over a bony spot or under a device, from pressure alone or with shear.
Preventing pressure injuries
- Braden Scale: lower score, higher risk. 15 to 18 mild, 13 to 14 moderate, 10 to 12 high, 9 or below severe. Score on admission, then regularly.
- Turn on an individual plan; two hours isn't universal.
- Float the heels. Head of the bed at 30 degrees or lower when you can, to reduce shear.
- Move clients up with friction-reducing or mechanical equipment and enough trained staff, per policy; never drag them. Keep skin clean and dry.
Wound drainage
| Type | Looks like |
|---|---|
| Serous | Clear, watery; small amounts are normal |
| Sanguineous | Fresh blood |
| Serosanguineous | Watery, with a little blood |
| Purulent | Thick, opaque, tan to green: never normal |
How wounds heal
- Four phases: hemostasis, inflammation, proliferation, maturation. Closure time varies with the wound, perfusion, infection and other illness.
- Healthy granulation is pink, moist, painless and bumpy. Dark red tissue that bleeds easily, or a shiny white or yellow film, suggests infection.
- Report slough and eschar. Stable, dry heel eschar stays until circulation is checked.
- Measure length head to toe, width and depth in centimeters, by one consistent method.
Drains and staples
- Wound vac: foam sealed under film, with suction. Keep the seal intact.
- Bulb drain: empty and measure, then compress the bulb before closing it. Pin it below the wound, with slack.
- Report drainage that increases or changes.
- Sutures or staples: provider order, inspect first, then remove every other one first, checking healing as you go.
Cleansing and dressings
| Dressing | Use it for | Watch |
|---|---|---|
| Gauze | Packing deep wounds loosely, moistened | Dry gauze can stick and tear new tissue |
| Transparent film | Wounds with little drainage | Not fragile skin |
| Hydrocolloid | Keeps wounds moist for 3 to 5 days | Not on infected wounds |
| Hydrogel | Moistening dry wounds | Cover only the wound, not the skin around it |
| Alginate | Heavy drainage; packing deep wounds | Not dry wounds. Green drainage may still be pus: assess fully |
Every change: Cleanse with normal saline; avoid hydrogen peroxide, iodine and acetic acid, which can harm tissue. Keep the bed moist, not wet. Give pain medicine before a painful change.
Priority and safety calls
- ★ Singed nose hairs, a hoarse voice and sooty sputum after a house fire, with only small skin burns: the airway comes first.
- A full-thickness burn all the way around the forearm and a weakening radial pulse: expect an escharotomy.
- Neck burn: no pillow under the head, to prevent contracture. Inhalation injury needs airway assessment and individual positioning.
- ★ Edges separate during staple removal: stop, assess, and notify per protocol. Deep dehiscence or evisceration needs urgent escalation, not just Steri-Strips.
- New thick, green drainage: report it, and expect a wound culture.
- ★ A red area over the hip that stays red when pressed: relieve the pressure, document it and report it. Massage would make it worse.
How the NCLEX tests it
- Burn traps: ice or butter, ignoring hoarseness because the skin burns look small, and counting superficial burns.
- Rule of nines: the front of the trunk (18) plus the whole right arm (9) is 27%.
- Wound traps: hydrogen peroxide, dry gauze on new tissue, a hydrocolloid on an infected wound, and forgetting to compress the bulb.
- Pressure injury traps: massaging red skin, a high head of bed for hours, and staging a wound covered by eschar.
- A shallow, open wound with a pink base and no fat visible is stage 2.
Practice it next
This sheet comes from Burns and Wounds, drains and negative-pressure therapy and Skin integrity and pressure injuries in our NCLEX-RN course. Try free practice questions, or see the lessons it was written from.
Quick self-quiz
- Full-thickness burns are leathery and may be ___.
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numb - Adult rule of nines: each leg is ___ percent.
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18 - Cool a small burn with cool water for at least ___ minutes.
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20 - Purulent drainage is ___ normal.
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never - After emptying a bulb drain, ___ it before closing it.
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compress - Stage 1 is intact skin with redness that doesn't ___.
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blanch - A Braden score of 9 or below means ___ risk.
Show answer
severe
Sources
- HHS REMM, Burn Triage and Treatment of Thermal Injuries
- MedlinePlus, Burns
- Open RN, Nursing Skills 2e, 20.3 Assessing Wounds
- Open RN, Nursing Skills 2e, 20.5 Wound Dressings
- NPIAP, Pressure Injury Stages
- Open RN, Nursing Fundamentals 2e, 10.5 Braden Scale
More musculoskeletal and skin cheat sheets
Educational use only. This sheet is a study aid for the NCLEX-RN, not a substitute for clinical judgment, your facility’s policy or the provider’s orders. Where practice varies, follow facility policy and state law. NCLEX® and NCLEX-RN® are registered trademarks of NCSBN, which does not endorse these materials.
