Burns and Dermatologic Disorders - Memory Anchors
Memory techniques transform dry clinical facts into vivid mental images that stick. For a chapter as formula-heavy and detail-rich as Burns and Dermatologic Disorders, the right mnemonic can mean the difference between a blank mind and instant, confident recall. Use these anchors during review, link each clue to its trigger, and practice the quick-recall chains aloud. The more senses and emotions you engage, the longer the memory lasts. Think of these tools as your personal 'cheat codes' — not to skip learning, but to lock it in permanently.
Memory anchors
Parkland Formula: 4 mL × kg × %TBSA of Lactated Ringer's in 24 hours
Memory aid
Remember '4-K-T' — Four mL, Kilogram, Twenty-four (hours). Chant it like a jeepney route: 'Four-Kay-Tee, LR all day!' The 'K' is kilograms of the patient, 'T' is the percentage of TBSA burned. Multiply them together with 4, and you get the total liters to give in one full day. LR = Lactated Ringer's, always.
Why it works
The catchy chant '4-Kay-Tee' mirrors the structure of the formula and is rhythmically easy to recall. Associating it with a jeepney route (a deeply familiar Filipino image) embeds it in long-term memory through cultural relevance.
Example usage
Board question: 'A 60 kg patient has 40% TBSA burns. How much LR is needed in 24 hours?' Recall '4-Kay-Tee': 4 × 60 × 40 = 9,600 mL total.
Recall trigger
Hear 'Parkland' or 'burn fluid' → think 'Four-Kay-Tee, LR all day!'
Parkland Formula Timing: 50% in first 8 hours FROM TIME OF INJURY, 50% in next 16 hours
Memory aid
Think of a fiesta lechon being served in two rounds. The most important guests get MORE at the START — half the lechon is served in the first 8 hours (the 'grand entry' phase). The rest is served slowly over the remaining 16 hours. BUT the clock started when the pig was roasted (time of injury), NOT when you arrived at the party (time of IV insertion). If you arrive 2 hours late, the first half must still be finished by the 8-hour mark from roasting.
Why it works
The fiesta lechon analogy uses a culturally vivid and festive Filipino image. The 'clock starts at roasting' anchors the critical NLE trap: time is calculated FROM INJURY, not from hospital arrival.
Example usage
If a patient was burned at 10:00 AM and IV started at 12:00 PM, the first 50% must be in by 6:00 PM (8 hours from injury = 6:00 PM), leaving only 6 hours — so the rate is higher.
Recall trigger
Think of the lechon fiesta → first half early, clock from roasting (injury time).
Rule of Nines — Adult TBSA Distribution
Memory aid
Use the phrase: 'HAPPY LEGS PLUS ONE.' H = Head and neck (9%), A = Each Arm (9% × 2 = 18%), P = Posterior trunk (18%), P = Perineum (1%), Y = ... wait, reframe: use body navigation: 'Nine from the top, Nine per arm, Eighteen front, Eighteen back, Eighteen per leg, One for the rest.' Alternatively, remember '9-9-18-18-18-1' as a phone number: 0919-1818-181. Filipino students know 0919 as a Globe number — '0919-1818-181 is the Rule of Nines hotline!'
Why it works
Encoding the rule as a Philippine mobile number (0919-1818-181) uses chunking and cultural familiarity with telecom networks. The 'hotline' framing adds humor and narrative, both proven memory enhancers.
Example usage
Question: 'Patient burned on both arms and anterior trunk. What is the TBSA?' Recall the hotline: Arms = 9+9 = 18%, Anterior trunk = 18%. Total = 36%.
Recall trigger
Dial the Rule of Nines hotline: 0919-1818-181 → Head(9), Arms(9+9), Anterior trunk(18), Posterior trunk(18), Each leg(18), Perineum(1).
First-degree (superficial) burn: red, dry, painful, NO blisters, only epidermis, NOT counted in TBSA
Memory aid
A sunburn at the beach in Boracay — you got burned, you're red and in pain, but you didn't blister, and you'll peel in a few days and be fine. It's only the surface layer — like the varnish on a wooden table scratched but the wood underneath is untouched. The NLE will try to trick you: sunburns are NOT included in TBSA calculations because they are first-degree only.
Why it works
Boracay sunburn is a universally relatable Filipino experience. The varnish analogy reinforces the single-layer concept visually. The direct NLE warning makes the exclusion rule memorable as a test trap.
Example usage
If a patient has a sunburned face and a blistered forearm, only count the blistered forearm for TBSA; do NOT add the face.
Recall trigger
Think Boracay sunburn → surface only, red and dry, no blisters, does NOT count in TBSA.
Second-degree superficial partial-thickness: blisters, MOST PAINFUL, moist, weeping
Memory aid
Maria accidentally grabbed a hot kawali (frying pan) handle. Within minutes, she had water-filled bubbles on her palm and was screaming in pain — louder than when she accidentally kicked a chair. The nerve endings were intact and screaming right along with her. Her wound was wet and weeping. Her ate said, 'Huwag mo siyang basagin!' (Don't pop them!) because the blisters protect the wound. Maria never forgot: blisters = second degree, and the pain is the WORST of all burns because the nerves are alive and fully exposed.
Why it works
A narrative set in a Filipino kitchen with familiar objects (kawali) creates an emotional and sensory memory. The Tagalog phrase adds authenticity. The pain being 'the worst' is a key NLE point anchored by Maria's scream.
Example usage
Board question asks which burn is MOST painful — answer is superficial partial-thickness (second-degree), because nerve endings are intact and exposed.
Recall trigger
Think of Maria and the kawali → blisters, extreme pain, moist, nerve endings intact.
Full-thickness (third-degree) burn: painless in center, dry, leathery eschar, requires grafting, does NOT blanch
Memory aid
Picture a piece of dried, cracked leather barong tagalog left in the sun for years — stiff, dry, lifeless, not feeling anything. That is a third-degree burn wound. The nerve endings are completely dead (burned away), so the center is PAINLESS — like touching the leather barong, it feels nothing. The skin doesn't blanch when you press it because there's no blood flow beneath. It cannot heal on its own — it needs a 'replacement fabric' (skin graft). Color: white, waxy, tan, brown, or charred — never pink.
Why it works
The image of a dried leather barong tagalog is culturally specific and visually striking. Comparing the graft to 'replacement fabric' on a damaged national garment is both memorable and logically meaningful.
Example usage
Question: 'Which burn finding requires mandatory skin grafting and is painless?' Answer: full-thickness (third-degree) burn with dry, leathery eschar.
Recall trigger
Picture a dried leather barong → painless, dry, leathery, needs a new 'fabric' (skin graft).
Emergent Phase Electrolyte Imbalances: Hyperkalemia + Hyponatremia (fluid shifts OUT, edema forms)
Memory aid
EMERGENCY = 'E-HYPER-K' — In the Emergency phase, K (potassium) is HIGH (HYPER) because damaged cells release their intracellular potassium. Sodium is LOW because it gets trapped in the swelling (edema). Remember: 'In the fire (emergency), the K escapes and becomes HIGH, and the Na gets swallowed by swelling.' Think of escaping prisoners: Potassium runs OUT of the cells (hyperkalemia), while Sodium gets stuck in the swamp of edema (hyponatremia).
Why it works
The prisoner escape metaphor gives potassium and sodium active, memorable roles. 'E-HYPER-K' is a compact acronym that directly encodes the phase and electrolyte name and direction.
Example usage
NLE asks: 'What electrolyte imbalance is expected 12 hours post-burn injury?' Answer: Hyperkalemia (cells releasing K) and hyponatremia (Na trapped in edema).
Recall trigger
Think 'Emergency → HYPER-K' → potassium escapes cells = HIGH; sodium swallowed by edema = LOW.
Acute Phase: Diuresis, Hypokalemia, Infection/Sepsis risk (fluid shifts BACK into vascular space at 48–72 hours)
Memory aid
On Day 3 post-burn, the flood (edema) recedes back into the river (blood vessels). The patient suddenly starts urinating a lot (diuresis). Now the danger shifts: too much fluid comes back and potassium is flushed out in the urine — leaving the patient with LOW potassium (hypokalemia). Meanwhile, the open wounds become a gaping invitation to bacteria — infection and sepsis take center stage. Think: 'Day 3, the flood retreats, the pee flows, K is gone, and the germs move in.'
Why it works
The flood-and-river metaphor for capillary re-integrity is intuitive. The progression from flood → pee flow → K loss → germ invasion is a logical chain that maps directly to the physiology.
Example usage
Question: 'A burn patient is now on Day 3. What electrolyte imbalance is expected?' Answer: Hypokalemia (K lost in diuresis as fluid remobilizes).
Recall trigger
Day 3, flood retreats → diuresis → hypokalemia → infection/sepsis.
Urine Output as Resuscitation Adequacy Marker: 0.5 mL/kg/hr (adults), 1 mL/kg/hr (children)
Memory aid
Sing to the tune of a simple Filipino counting song: 'Point-five for grown-ups, one for the kids, if the pee is flowing, the fluid does its bid!' Adults: 0.5 mL/kg/hr (roughly 30–50 mL/hr for average Filipino adult). Children: 1 mL/kg/hr. If the urine output is hitting these targets, the Parkland formula is working. Remember: Urine = the window to the kidney = the report card for fluid resuscitation.
Why it works
The rhyme uses rhythm and meter to pair adult vs. child targets. The 'report card' metaphor for urine output resonates with Filipino students' familiarity with academic evaluation.
Example usage
Question: 'What urine output indicates adequate fluid resuscitation in a 70 kg burned adult?' Answer: 0.5 × 70 = 35 mL/hr (within the 30–50 mL/hr range).
Recall trigger
Hum 'point-five for grown-ups, one for the kids' → urine output targets for burn resuscitation.
Inhalation Injury Signs: Facial burns, Singed nasal hairs, Sooty (carbonaceous) sputum, Hoarseness, Stridor, Enclosed-space history
Memory aid
Use 'FSSH-E': Face burned, Singed nasal hairs, Sooty sputum, Hoarseness/Stridor, Enclosed space. Pronounce it like 'Fishy' — because the patient's airway smells like smoke and carbon and looks FISHY (suspicious) for inhalation injury. Any one of these signs = treat as inhalation injury immediately. 'If it smells FISHY, protect that airway NOW!'
Why it works
The 'FISHY' pronunciation creates a sensory-smell cue, which is one of the most powerful memory triggers. Each letter maps directly to a clinical sign, making this a compact, exam-ready checklist.
Example usage
Question: 'Which finding warrants immediate intubation in a burn patient?' Check FSSH-E — hoarseness or stridor = developing airway edema = intubate early before complete obstruction.
Recall trigger
Something smells FISHY → FSSH-E → assess for inhalation injury signs.
Airway is FIRST priority in burns (Maslow: Physiological — Airway > Breathing > Circulation)
Memory aid
Picture a burning building. Before anyone does ANYTHING — before calling relatives, before choosing the evacuation route, before counting valuables — someone screams 'BAWAT BUHAY NAGSISIMULA SA HANGIN!' (Every life starts with air!). The airway is the absolute first priority. In burn nursing, if the face is burned or there is inhalation injury, you intubate EARLY — because within hours, swelling will shut the door permanently. Think: 'Burn = airway first, always. If the door is closing, open it NOW before it locks.'
Why it works
The burning building visual is viscerally memorable. The Tagalog phrase adds emotional resonance. The 'closing door' metaphor for progressive airway edema makes the urgency concrete and logical.
Example usage
NLE scenario: A burn patient has singed eyebrows and a hoarse voice. What is the PRIORITY nursing action? Answer: Prepare for/assist with early intubation — airway protection before anything else.
Recall trigger
Burning building → 'air first!' → airway is priority #1 in burns.
Silver Sulfadiazine: Broad-spectrum topical, causes transient leukopenia, contraindicated in sulfa allergy
Memory aid
SSD = Silver Sulfadiazine. Remember 'SSD = Silver Sword that Drops WBCs.' The silver sword kills bacteria broadly (broad-spectrum), but it also hits the white blood cells along the way (transient leukopenia). It is contraindicated in SULFA allergy — easy because SULFAdiazine literally has SULFA in the name. Extra tip: also avoid near-term pregnancy and newborns (risk of kernicterus from sulfa component).
Why it works
The 'Silver Sword' visualization is iconic and easy to picture. 'Drops WBCs' directly encodes leukopenia. The SULFA-in-the-name trick is self-evident once pointed out and requires no additional memorization.
Example usage
Question: 'What side effect should the nurse monitor when using silver sulfadiazine?' Answer: Transient leukopenia — monitor CBC.
Recall trigger
SSD = Silver Sword → kills bacteria + drops WBCs (leukopenia) → SULFA allergy = contraindicated.
Mafenide Acetate: Penetrates eschar, painful on application, causes metabolic acidosis (carbonic anhydrase inhibition)
Memory aid
Dr. Mafenide is a brilliant but painful doctor who can penetrate the thickest walls (eschar) — great at getting through where others cannot. But every time he works, he makes the patient scream (painful on application) and, as a side effect, he acidifies the patient's blood (metabolic acidosis) because he accidentally shuts off the carbonic anhydrase enzyme that balances acid-base. He is used specifically over cartilage (ears, nose) where eschar is tough. Remember: 'Mafenide = MASAKIT + ACIDIC + penetrates eschar.'
Why it works
Personifying the drug as 'Dr. Mafenide' gives it human traits that are directly linked to its clinical properties. The Filipino word 'masakit' (painful) creates a bilingual memory hook. The three traits are bundled in one story.
Example usage
Question: 'What acid-base imbalance can result from mafenide acetate use?' Answer: Metabolic acidosis (inhibits carbonic anhydrase).
Recall trigger
Dr. Mafenide = MASAKIT (painful) + ACIDIC (metabolic acidosis) + penetrates thick walls (eschar).
Rehabilitation Phase: Prevent contractures — position in EXTENSION, use splints, early ROM exercise, pressure garments for hypertrophic scar
Memory aid
A healing burn wound is like a drying rubber band. If you leave a rubber band in a bent (flexed) position while it dries and hardens, it permanently curls. To prevent this, you must stretch it flat (extend it) and keep it there until it sets. That is exactly why burn nurses position joints in EXTENSION during healing — to prevent contractures (the 'curled rubber band' deformity). Pressure garments press the scar flat while it forms, like a libro (textbook) pressing a flower to prevent it from curling up.
Why it works
The rubber band drying in a bent shape is a vivid tactile analogy. The libro pressing a flower is a familiar Filipino student image. Both directly explain the mechanism of contracture prevention through physical metaphors.
Example usage
Question: 'What position should the nurse maintain for a patient with circumferential arm burns during rehabilitation?' Answer: Arm in extension, with splinting and early ROM to prevent flexion contracture.
Recall trigger
Drying rubber band in bent position = contracture → stretch it FLAT (extension) to prevent it.
Psoriasis: Autoimmune, silvery-white plaques on extensor surfaces, NOT contagious, remitting-relapsing
Memory aid
Picture a knight wearing silver armor that ONLY grows on the outside of the elbows and knees (extensor surfaces) — the bony, exposed areas. The armor (silvery plaques) appears and disappears (remitting-relapsing) because the knight's own immune system (autoimmune) is misfiring and making the skin cells multiply too fast. You cannot 'catch' the knight's armor by touching him — NOT contagious. Key: silvery armor = silvery plaques, extensor surfaces = outside of joints, always.
Why it works
The silver knight armor is visually striking and encodes three facts simultaneously: silver (plaques), extensor surfaces (outside of armor-wearing joints), and the recurring nature of wearing/removing armor (remitting-relapsing).
Example usage
Question: 'What is the characteristic distribution of psoriatic lesions?' Answer: Extensor surfaces — elbows, knees, scalp, sacrum — with silvery-white scales over raised red plaques.
Recall trigger
Silver knight armor on elbows and knees → psoriasis → autoimmune, not contagious, silvery plaques on extensors.
Cellulitis: Bacterial (Strep/Staph), poorly defined borders, warm/red/tender, treat with systemic antibiotics + elevation
Memory aid
Cellulitis is like a spilled cup of kape (coffee) on a white table — the stain spreads with no clear, sharp edge (poorly defined borders), the area around the spill is warm and red from the hot liquid, and it is tender to touch. Unlike a bolitas (abscess or pimple) with a defined head, cellulitis has no center — it spreads. You treat it by: (1) giving antibiotics to kill the bacteria causing the spread, and (2) elevating the limb — 'raise the table edge' — to reduce swelling and help drainage.
Why it works
Spilled kape is an immediately visual and culturally familiar image. The spreading stain with no sharp edge perfectly encodes 'poorly defined borders.' The contrast with a defined pimple clarifies the clinical distinction.
Example usage
Question: 'How does cellulitis differ from an abscess in presentation?' Answer: Cellulitis has POORLY DEFINED spreading borders (no center), warmth, redness, and tenderness without fluctuance.
Recall trigger
Spilled kape → spreading stain with no sharp edge → cellulitis → poorly defined borders, treat with antibiotics + elevation.
Electrical Burns: Deep tissue damage greater than surface appearance, monitor for dysrhythmias and myoglobinuria
Memory aid
Kuya Bert was an electrician who accidentally touched a live wire. The small entry burn on his palm looked minor — almost like a first-degree burn. But deep inside, the electricity had traveled through his muscles and heart like a lit fuse through a building's wiring. His urine turned dark brown (Coca-Cola colored) from myoglobin released by damaged muscle, and his heart monitor showed erratic beats. His nurse remembered: 'The outside tells a lie — electrical burns go DEEP. Always check the heart and urine color.' Dark urine = risk for acute kidney injury.
Why it works
Kuya Bert is a relatable Filipino working-class character. The 'lit fuse through wiring' analogy explains electrical current pathways intuitively. The Coca-Cola colored urine is a concrete, unforgettable visual for myoglobinuria.
Example usage
Question: 'What priority assessments are needed for a patient with an electrical burn?' Answer: Monitor cardiac rhythm (ECG), assess urine color and output for myoglobinuria, and recognize that surface wound underestimates depth of injury.
Recall trigger
Kuya Bert the electrician → small outside wound, deep damage inside → check ECG + watch for Coca-Cola urine (myoglobinuria).
Burn Nutrition: High-calorie, high-protein, with Vitamin C, Vitamin A, and Zinc supplementation (hypermetabolic state)
Memory aid
Remember 'CHAMP Nutrition for Burns': C = Calories (HIGH), H = High Protein, A = Vitamin A, M = Minerals especially Zinc, P = Protein again (double emphasis). Burns create a hypermetabolic state — the body is burning fuel like a jeep running on full throttle all the time. Feed the CHAMP early via enteral route to prevent gut breakdown and meet the enormous metabolic demand. Vitamin C helps collagen synthesis for wound healing; Zinc supports immune function and tissue repair.
Why it works
CHAMP is a motivating, positive acronym that implies the patient needs 'champion-level nutrition.' The jeep on full throttle metaphor captures the hypermetabolic concept in familiar Filipino imagery.
Example usage
Question: 'What nutritional supplements are important in burn wound healing?' Answer: High-calorie, high-protein diet with Vitamin C (collagen synthesis), Vitamin A (immune function and skin repair), and Zinc (wound healing and immunity).
Recall trigger
CHAMP → Burns need champion nutrition: high Calories, high protein (twice), Vitamin A, Minerals (Zinc), plus Vitamin C.
Curling Ulcer: Stress-related gastric ulcer occurring in burn patients; prevent with PPIs or H2 blockers
Memory aid
Say it like a Tagalog riddle: 'Kung sunog ka labas, mayroon ring sunog sa loob — Curling na ulcer, sa tiyan mo! Bigyan ng PPI o H2 blocker, huwag hayaang dumami ang acid.' Translation: If you're burned outside, there's also a fire inside — Curling ulcer in your stomach! Give a PPI or H2 blocker, don't let acid multiply. The stress of massive burns triggers excessive gastric acid secretion, leading to gastric erosion — Curling ulcer. Prevention is key: give omeprazole (PPI) or ranitidine (H2 blocker) routinely.
Why it works
The bilingual riddle/rhyme is engaging and culturally appropriate. The 'fire inside' parallel to external burns is a clever conceptual link that makes Curling ulcer immediately logical and memorable.
Example usage
Question: 'What prophylactic medication should be given to prevent stress ulcers in major burn patients?' Answer: Proton pump inhibitor (PPI) like omeprazole or H2 blocker like ranitidine — to prevent Curling ulcer.
Recall trigger
'Sunog sa labas, sunog sa loob' → Curling ulcer → prevent with PPI or H2 blocker.
IV Route for Burn Analgesia — NOT IM/SC during emergent phase (poor absorption due to edema and hypoperfusion)
Memory aid
Picture trying to mail a letter (medication) via a flooded postal route (edema-swollen tissue). The letter gets stuck in the flood — it never arrives on time or in full dose (unreliable IM/SC absorption). The ONLY reliable route when everything is flooded is the expressway — the VEIN (IV). Always give opioid analgesia INTRAVENOUSLY during the emergent burn phase. Think: 'Flooded roads = go via highway = IV only.'
Why it works
Flooded roads are a universally familiar Filipino experience (typhoon season). The expressway-versus-flooded-road metaphor directly maps to IV versus IM/SC routes and immediately explains WHY IV is chosen.
Example usage
Question: 'What is the correct route for opioid administration in a major burn patient during the emergent phase?' Answer: Intravenous (IV) — IM and SC absorption are unreliable due to edema and poor peripheral perfusion.
Recall trigger
Flooded roads → go via highway (vein) → give burn pain meds IV, NOT IM/SC.
Revision game
I am the formula's secret ingredient — multiply me by 4, by the patient's weight, and by the burn percentage. What am I?
Answer
mL (milliliters) — the unit in the Parkland formula: 4 mL × kg × %TBSA
Memory link
A1 — 4-Kay-Tee, LR All Day mnemonic
I am the burn phase where potassium escapes cells and sodium gets swallowed by swelling. Which phase am I?
Answer
Emergent Phase (0–48 hours) — hyperkalemia and hyponatremia
Memory link
A7 — E-HYPER-K acronym
I look minor on the outside but destroy muscles and shock the heart on the inside. I turn urine the color of Coca-Cola. What type of burn am I?
Answer
Electrical burn — causes deep tissue damage, cardiac dysrhythmias, and myoglobinuria
Memory link
A17 — Kuya Bert the electrician micro-story
I am the burn wound that feels NOTHING in the center, looks like dried leather, and cannot heal without a transplant. What degree am I?
Answer
Full-thickness (third-degree) burn — painless, leathery eschar, requires skin grafting
Memory link
A6 — dried leather barong tagalog visual association
I am the topical agent that can push through tough eschar but I make patients scream and acidify the blood. Who am I?
Answer
Mafenide acetate — penetrates eschar, painful on application, causes metabolic acidosis
Memory link
A13 — Dr. Mafenide the Painful Penetrator micro-story
I am a chronic autoimmune skin disease. I form silvery armor only on the outside of your elbows and knees. I come and go but I am NOT catching. What am I?
Answer
Psoriasis — autoimmune, silvery-white plaques on extensor surfaces, not contagious, remitting-relapsing
Memory link
A15 — silver knight armor visual association
I am the urine output target that tells you the Parkland formula is working in an adult burn patient. State my value in mL per kg per hour.
Answer
0.5 mL/kg/hr in adults (approximately 30–50 mL/hr); 1 mL/kg/hr in children
Memory link
A9 — 'Point-five for grown-ups, one for the kids' rhyme
I am the gastric ulcer that forms silently when the outside of the body is on fire. Name me and my prevention.
Answer
Curling ulcer — stress-related gastric ulcer in burn patients; prevent with PPI (omeprazole) or H2 blocker (ranitidine)
Memory link
A19 — 'Sunog sa labas, sunog sa loob' rhyme
Formula mnemonics
Parkland Formula: Total fluid = 4 mL × body weight (kg) × %TBSA burned, given as Lactated Ringer's over 24 hours
Mnemonic
4-Kay-Tee, LR All Day — Four mL, Kilogram (Kay), TBSA percent (Tee), Lactated Ringer's, 24 hours total.
When to use
Any major burn patient in the emergent phase requiring fluid resuscitation. Use ONLY %TBSA from partial-thickness and full-thickness burns — exclude first-degree burns from the calculation.
What each part means
4 = the constant (4 mL per kg per percent burn); kg = patient's body weight in kilograms; %TBSA = percentage of total body surface area burned (partial and full-thickness only, NOT first-degree); LR = Lactated Ringer's solution (isotonic crystalloid of choice); 24 hours = total time for delivery.
Fluid Timing: 50% of total Parkland volume in first 8 hours FROM TIME OF INJURY; 50% over next 16 hours
Mnemonic
HALF-EIGHT-SIXTEEN: Half first, Eight hours from injury time, Sixteen for the rest. Remember: the clock starts at the BURN, not the bag.
When to use
Whenever calculating the infusion RATE for each time block. If there is a delay in starting the IV (e.g., 2-hour transport time), the first-half volume must be compressed into the remaining hours before the 8-hour mark.
What each part means
First 50% = the larger, more urgent portion delivered in the first 8 hours post-injury; Second 50% = delivered evenly over the next 16 hours; FROM TIME OF INJURY = the critical trap — not from when the IV was started or the patient arrived.
Urine Output Target for Resuscitation Adequacy: Adults = 0.5 mL/kg/hr (~30–50 mL/hr); Children = 1 mL/kg/hr
Mnemonic
HALF for grown-ups (0.5 mL/kg/hr), FULL ONE for kids (1 mL/kg/hr) — children need DOUBLE the per-kg rate because their kidneys are more sensitive to underperfusion.
When to use
Throughout the emergent and acute phases of burn care whenever assessing if fluid resuscitation is adequate. Urine output is the PRIMARY indicator — not the formula number alone.
What each part means
0.5 mL/kg/hr = minimum acceptable urine output for an adult indicating adequate renal perfusion and fluid resuscitation; 1 mL/kg/hr = target for pediatric patients; these are OUTPUT targets used to TITRATE the Parkland infusion up or down.
Rule of Nines (Adult): Head/neck=9%, Each arm=9%, Anterior trunk=18%, Posterior trunk=18%, Each leg=18%, Perineum=1%
Mnemonic
Dial the hotline: 09-18-18-18-1 → Head(9), Arms(9 each), Anterior(18), Posterior(18), Legs(18 each), Perineum(1). Remember: FIRST-DEGREE burns are NOT counted — only partial- and full-thickness.
When to use
Any adult burn assessment to quickly estimate the percentage TBSA burned, which then feeds into the Parkland formula for fluid resuscitation. For children or irregular burns, consider Lund-Browder or the palm method (patient's palm = ~1% TBSA).
What each part means
Each body region is assigned a value that is a multiple of 9, totaling 100% body surface area. This rapid estimation tool is used for adults. Children require the Lund-Browder chart because the head is proportionally larger.
Quick recall chains
Burn Depth Classification: From Mildest to Most Severe
Recall test
Which burn type is MOST painful and why? Which burn type is painless and why? Which burn types require skin grafting?
Memory chain
Think of a sunburn escalating into a house fire: (1) Sunburn = just the paint (epidermis only, red, dry, no blisters); (2) Grabbed a kawali = blisters and screaming (superficial partial-thickness, MOST PAIN); (3) Touched a hot iron longer = drier, waxy, less feeling (deep partial-thickness); (4) House fire = leather-like, painless, needs new skin (full-thickness, requires grafting); (5) Everything burned = the whole structure collapsed (4th degree, bone/muscle, amputation). Each step, the damage goes DEEPER and paradoxically the PAIN DECREASES as nerves are destroyed.
Items to remember
- Superficial (1st degree): epidermis only, red, dry, painful, NO blisters, heals 3–6 days, NOT counted in TBSA
- Superficial partial-thickness (2nd degree): epidermis + upper dermis, blisters, MOST PAINFUL, moist, heals 2–3 weeks
- Deep partial-thickness (2nd degree): deeper dermis, red to waxy white, LESS pain, drier, may need grafting
- Full-thickness (3rd degree): entire epidermis + dermis, DRY leathery eschar, PAINLESS center, requires grafting
- Fourth degree: muscle/fascia/bone, charred, may require amputation
Three Phases of Burn Care in Order
Recall test
Name the MAIN electrolyte imbalance in each phase. What is the leading cause of death in the emergent phase vs. the acute phase?
Memory chain
Picture a typhoon flood in three stages: Stage 1 (FLOOD = Emergent) — the water rushes OUT of the rivers (vascular space) and floods the fields (interstitium), creating chaos (hypovolemia, electrolyte shifts). Stage 2 (FLOOD RECEDES = Acute) — the water flows back into the rivers (diuresis), but now the fields are dirty and infected with bacteria (infection/sepsis risk). Stage 3 (REBUILD = Rehabilitation) — the flood is gone; now you rebuild the houses (restore function) and prevent the walls from curling (contracture prevention).
Items to remember
- Emergent Phase (0–48 hours): fluid shifts OUT, edema, hypovolemia, hyperkalemia, hyponatremia, airway priority
- Acute Phase (48–72 hours to wound closure): fluid shifts BACK, diuresis, hypokalemia, infection/sepsis risk, wound care and nutrition
- Rehabilitation Phase (wound closure onward): contracture prevention, pressure garments, PT/OT, psychosocial support
Signs of Inhalation Injury (FSSH-E Checklist)
Recall test
List all 5–6 signs of inhalation injury from memory. What is the PRIORITY nursing action when inhalation injury is suspected?
Memory chain
FSSH-E = 'FISHY' smell around smoke → Face burned, Singed nasal hairs, Sooty sputum, Hoarseness/Stridor, Enclosed space. Think: If anything about the patient's face and breathing smells FISHY (suspicious), act immediately. Airway edema can progress and close the airway within hours — you must intubate EARLY while there is still time. Once the swelling shuts the door, it is too late for a normal intubation.
Items to remember
- Facial burns (especially perioral and perinasal)
- Singed nasal hairs or eyebrows
- Sooty (carbonaceous) sputum
- Hoarseness or voice changes
- Stridor (high-pitched inspiratory sound)
- Enclosed space fire history
Topical Antimicrobials in Burn Care — Key Properties
Recall test
Which topical agent penetrates eschar? Which causes metabolic acidosis? Which causes leukopenia? Which is contraindicated in sulfa allergy?
Memory chain
Two knights guard the burn wound: Knight SSD (Silver Sword) kills broadly but accidentally drops white blood cells (leukopenia) and cannot serve anyone with a sulfa allergy. Knight Mafenide (the Painful Penetrator) can break through thick walls (eschar) but screams at every battle (painful on application) and accidentally poisons the blood with acid (metabolic acidosis). Use SSD for most wounds; use Mafenide where eschar is thick (over cartilage like the ears).
Items to remember
- Silver Sulfadiazine (SSD): broad-spectrum, transient leukopenia, contraindicated in sulfa allergy and near-term pregnancy
- Mafenide Acetate: penetrates eschar (use over cartilage), painful on application, causes metabolic acidosis
- Both require strict aseptic technique on application
Nursing Priorities in the Emergent Phase (ABCDEs of Burn Care)
Recall test
Why is IM opioid avoided in burns? What is an escharotomy and when is it indicated? What is the first nursing priority in any major burn?
Memory chain
Think ABCDE like the trauma primary survey adapted for burns: A = Airway first (intubate before swelling locks the door); B = Breathing (chest wall can be constricted by circumferential burns — escharotomy); C = Circulation and fluid (IV + Foley + Parkland); D = Drugs via IV (morphine IV, tetanus toxoid); E = Expose and keep warm (hypothermia is deadly in major burns). This mirrors the ABCDE approach familiar from ACLS and trauma nursing.
Items to remember
- Airway: assess for inhalation injury; intubate early if edema is developing; give 100% humidified O2 for CO poisoning
- Breathing: ensure adequate ventilation; watch for circumferential chest burns (escharotomy if needed)
- Circulation/Fluid: establish large-bore IV × 2; start Parkland LR resuscitation; insert Foley for hourly urine output
- Drug/Pain management: IV opioids only (NOT IM/SC); tetanus prophylaxis
- Exposure/Environment: remove clothing and jewelry; keep warm (prevent hypothermia); NPO for ileus risk
Diagrams
Burns and Dermatologic Disorders — Master Concept Map
A comprehensive mind map showing all major topics in Burns and Dermatologic Disorders. Students can use this as a visual overview before review, tracing the connections from burn classification through phases of care, fluid formulas, pharmacology, and dermatologic conditions. The hierarchical structure mirrors Maslow-based and nursing-process organization.
Burn Patient Management Flowchart — From Scene to Rehabilitation
A step-by-step clinical flowchart guiding the nurse from the moment of burn injury through airway management, TBSA estimation, Parkland formula calculation, fluid monitoring (with a decision loop for urine output), wound care in the acute phase, and rehabilitation priorities. This mirrors the nursing process (assessment → planning → implementation → evaluation) across all three phases of burn care.
Electrolyte and Fluid Shifts Across the Three Phases of Burn Injury
A state diagram showing the progression of fluid and electrolyte changes across the three burn phases. Each state displays the key physiological events and nursing risks, with transitions labeled by the physiological trigger. This visual reinforces the classic NLE trap: electrolyte imbalances are OPPOSITE between the emergent and acute phases.
Differentiating Burn Depths at a Glance — Decision Flowchart
A visual decision flowchart for determining burn depth at the bedside. Starting from wound appearance (blister vs. no blister, dry vs. moist, blanching vs. non-blanching), the nurse arrives at the correct classification with key clinical features and management implications displayed at each endpoint. This mirrors clinical reasoning and NLE scenario-based questions.
Rule of Nines — Adult TBSA Distribution
A pie chart visually representing the Rule of Nines for adult TBSA estimation. The proportional size of each slice instantly communicates which body regions contribute the most to total burn surface area (trunk and legs dominate at 18% each). Students can see at a glance that the head is only 9% and the perineum is a tiny 1% — reinforcing correct values for burn calculations.