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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.

At a glance

Burn depth

DepthLooks likePain
SuperficialDry, red, like sunburnPainful
Superficial partialMoist, red, blisteredExtremely painful
Deep partialPale, drier; 3 weeks or more to healLess pain
Full-thicknessLeathery, white or blackMay 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

AreaPercent
Head and neck; each arm9 each
Front of the trunk; back of the trunk; each leg18 each
Genitals1

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

StageWhat you see
Stage 1Intact skin, redness that doesn't blanch. In darker skin, compare color with baseline; check temperature, firmness, sensation
Stage 2Exposed dermis: a pink, viable wound bed, or a serum-filled blister. Not for moisture damage, skin tears or blood-filled blisters
Stage 3Full-thickness loss, fat visible, but no bone, tendon or muscle. May have undermining or tunneling
Stage 4Deep structures, like fascia, muscle, tendon or bone, exposed or directly palpable
UnstageableBase hidden by slough (soft, yellow) or eschar (dark, leathery). Dry, stable heel eschar is usually left in place
Deep tissuePersistent 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

TypeLooks like
SerousClear, watery; small amounts are normal
SanguineousFresh blood
SerosanguineousWatery, with a little blood
PurulentThick, 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

DressingUse it forWatch
GauzePacking deep wounds loosely, moistenedDry gauze can stick and tear new tissue
Transparent filmWounds with little drainageNot fragile skin
HydrocolloidKeeps wounds moist for 3 to 5 daysNot on infected wounds
HydrogelMoistening dry woundsCover only the wound, not the skin around it
AlginateHeavy drainage; packing deep woundsNot 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.

Free NCLEX practice questionsThe NCLEX-RN course

Quick self-quiz

  1. Full-thickness burns are leathery and may be ___.
    Show answernumb
  2. Adult rule of nines: each leg is ___ percent.
    Show answer18
  3. Cool a small burn with cool water for at least ___ minutes.
    Show answer20
  4. Purulent drainage is ___ normal.
    Show answernever
  5. After emptying a bulb drain, ___ it before closing it.
    Show answercompress
  6. Stage 1 is intact skin with redness that doesn't ___.
    Show answerblanch
  7. A Braden score of 9 or below means ___ risk.
    Show answersevere

Sources

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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.