Homeostasis, Inflammation and Cellular Response - Memory Anchors
Memory techniques transform abstract medical-surgical concepts into vivid mental images, stories, and patterns your brain naturally loves to store and retrieve. For the NLE, where you need to recall dozens of clinical facts under pressure, these anchors give you an instant mental 'shortcut' — a single trigger word or image that unlocks a whole cascade of information. The more unusual, funny, or emotionally resonant the anchor, the stronger the neural pathway. Use these before sleep, during commute reviews, and on exam day when you need rapid, confident recall. Think of each anchor as a 'memory hook' — hang the new information on something you already know and love.
Memory anchors
Three Stages of General Adaptation Syndrome (GAS) by Hans Selye
Memory aid
Remember the acronym ARE: Alarm → Resistance → Exhaustion. Think of a jeepney driver stuck in EDSA traffic. First, he ALARMS — heart pounds, honks the horn (fight-or-flight). Then he RESISTS — adapts, turns on the AC, breathes deeply (body copes). Finally, he's EXHAUSTED — engine overheats, pulls over (body collapses). That jeepney driver is every stressed Filipino body.
Why it works
The acronym ARE (Alarm-Resistance-Exhaustion) plus a culturally familiar Filipino scenario (EDSA traffic) creates a dual memory hook — verbal and visual — that sticks because it is emotionally relatable.
Example usage
NLE question: 'A post-operative patient has been in the ICU for 3 weeks with persistent sepsis. His immune function is now deteriorating. Which stage of GAS is he in?' Answer: Exhaustion — the body's adaptive reserves are depleted. Recall: the jeepney engine overheated.
Recall trigger
Think: jeepney in EDSA. A-R-E.
Alarm Stage — Fight-or-Flight: Sympathetic activation, catecholamines, cortisol release
Memory aid
The Alarm Stage is like your phone suddenly going LOUD at 3am — everything ACTIVATES at once. Your heart (HR), lungs (RR), and blood pressure shoot UP. Blood rushes to muscles and vital organs (like calls going to emergency contacts). Blood glucose rises (your body is charging its battery). Non-essential functions — digestion, immunity — are put on SILENT MODE. That is exactly what epinephrine, norepinephrine, and cortisol do in the alarm stage.
Why it works
Relating physiologic activation to a smartphone alarm — universally familiar to Filipino college students — makes abstract catecholamine effects concrete and memorable.
Example usage
When asked about clinical manifestations in the alarm stage: increased HR, BP, RR, blood glucose, alertness. Answer: All are 'turned up' — the phone is blaring.
Recall trigger
Phone alarm at 3am — everything shoots up.
Cortisol Effects: Raises blood glucose, suppresses immunity and inflammation, promotes catabolism
Memory aid
Cortisol is the 'SUGAR BOSS who FIRES his workers': S - Sugar (blood glucose) goes UP; U - Undermines immunity (immunosuppression); G - Goes after protein and fat (catabolism); A - Anti-inflammatory (suppresses inflammation); R - Retains sodium and water (via aldosterone stimulus). Remember: SUGAR. The BOSS raises the sugar but fires the immune workers.
Why it works
The SUGAR acronym clusters five key cortisol effects into one word. The 'boss who fires workers' metaphor adds an emotional and narrative layer that enhances encoding.
Example usage
NLE stem: 'A patient on long-term corticosteroid therapy develops hyperglycemia, frequent infections, and muscle wasting. What explains this?' Recall SUGAR: cortisol raises sugar, undermines immunity, goes after protein (muscle wasting).
Recall trigger
SUGAR BOSS — cortisol.
Five Cardinal Signs of Inflammation
Memory aid
Use the Latin phrase: RCTDF — but remember it as 'Red Cats Take Deep Flights': R - Rubor (Redness); C - Calor (Heat/warmth); T - Tumor (Swelling); D - Dolor (Pain); F - Functio laesa (Loss of Function). Picture a red hot cat (Rubor + Calor), swollen from a fight (Tumor), crying in pain (Dolor), and unable to fly anymore (Functio laesa).
Why it works
The vivid image of a 'red hot swollen crying cat that can no longer fly' encodes all five signs in one memorable visual. The acronym RCTDF is a quick alphabetical anchor.
Example usage
NLE question: 'Which are the five cardinal signs of inflammation?' Without hesitation: Rubor, Calor, Tumor, Dolor, Functio laesa — recited by picturing the red cat.
Recall trigger
Red Cats Take Deep Flights — RCTDF.
Cellular Adaptations: Atrophy, Hypertrophy, Hyperplasia, Metaplasia, Dysplasia
Memory aid
Meet the Reyes siblings — five children with very different responses to stress at home: 1. ATE (Atrophy) — she got smaller and thinner (decreased cell size) when she stopped working out. 2. KUYA HYPER (Hypertrophy) — he got HUGE muscles (increased cell size) from the gym. 3. HAYPERPLAS (Hyperplasia) — the family MULTIPLIED — more children were born (increased cell number, like breast tissue in pregnancy). 4. META (Metaplasia) — the youngest CHANGED CAREER — switched from being a doctor to a lawyer (reversible change to a different cell type). 5. DIS (Dysplasia) — the rebellious one — grew up disordered and abnormal (abnormal disordered growth, premalignant).
Why it works
Embedding the five adaptations in a Filipino family story leverages narrative memory and personal relatability. Each sibling's trait directly maps to the cellular adaptation.
Example usage
NLE: 'A heavy smoker's bronchial epithelium changes from columnar to squamous cells. This is an example of?' Recall Meta — the one who changed career. Answer: Metaplasia.
Recall trigger
The Reyes family: Ate-Kuya-Hayperplas-Meta-Dis.
Difference Between Necrosis and Apoptosis
Memory aid
Necrosis is like a barangay FIRE — uncontrolled, messy, everything burns, smoke and noise everywhere (inflammation triggered), neighbors (surrounding cells) get hurt. Apoptosis is like a RESIGNED GOVERNMENT EMPLOYEE — orderly, packs up the desk, submits resignation letter (programmed), leaves quietly, no drama, no inflammation. Remember: Necrosis = Nasty chaotic fire; Apoptosis = Ayos (orderly) programmed exit.
Why it works
Contrasting chaos (barangay fire) with order (graceful resignation) makes the key distinction — inflammation vs. no inflammation — instantly clear and culturally resonant.
Example usage
NLE: 'Which type of cell death triggers the inflammatory response?' Recall the barangay fire. Answer: Necrosis.
Recall trigger
Fire (necrosis) vs. Resigned employee (apoptosis).
Key Inflammatory Mediators: Histamine, Bradykinin, Prostaglandins, Leukotrienes
Memory aid
Remember 'HBP Leaks' — these are the mediators that cause leaky, painful inflammation: H - Histamine (vasodilation, increased permeability — the first responder); B - Bradykinin (pain, vasodilation — BRADYKININ = BRADYING in pain!); P - Prostaglandins (pain, fever — Prostaglandin = PROduces PAIN and PYREXIA); L - Leukotrienes (prolonged inflammation, bronchoconstriction). 'HBP Leaks' — like high blood pressure leaking from the vessels — a memorable clinical image.
Why it works
The phrase 'HBP Leaks' mirrors a clinical scenario (hypertension + leaking vessels) that nursing students know well, and each letter anchors a mediator with its key action.
Example usage
NLE: 'Which mediator is primarily responsible for fever in inflammation?' Recall: P in HBP = Prostaglandins → PROduces PYREXIA. Answer: Prostaglandins acting on the hypothalamus.
Recall trigger
HBP Leaks — Histamine, Bradykinin, Prostaglandins, Leukotrienes.
Third-Spacing: Fluid shifts from intravascular to interstitial/body cavities
Memory aid
Third-spacing is like your budget money being LOCKED INSIDE a broken ATM — the money (fluid) is still THERE in the system (total body water is normal or even high), but you CANNOT ACCESS IT (not in circulation). You look poor (hypotension, tachycardia, oliguria — signs of hypovolemia) even though you have savings. Classic causes: burns, sepsis, major surgery, hypoalbuminemia. The body is 'mahal-mahal pero walang cash on hand' (rich on paper but broke in cash).
Why it works
The broken ATM analogy makes a complex physiologic concept (fluid sequestration with signs of volume depletion) immediately intuitive, especially for Filipino students familiar with financial stress.
Example usage
NLE: 'A burn patient has massive edema but shows hypotension and low urine output. Why?' Recall broken ATM. Answer: Third-spacing — fluid is sequestered and unavailable to the intravascular compartment.
Recall trigger
Broken ATM — money there but can't access it.
Hydrostatic vs. Oncotic Pressure — Fluid Movement in Capillaries
Memory aid
Visualize two teams playing a TUG OF WAR over a water hose: Team HYDRO (hydrostatic pressure) PUSHES fluid OUT of vessels into tissues — they are the strong ones in heart failure and hypertension. Team ONCO (oncotic/albumin pressure) PULLS fluid BACK into vessels — they are the 'suction team,' powered by albumin protein. Low albumin (malnutrition, liver disease) = Team ONCO is WEAK = fluid stays in tissues = EDEMA. High hydrostatic pressure (heart failure) = Team HYDRO wins = EDEMA. Both cause edema but by OPPOSITE mechanisms.
Why it works
Tug-of-war is a universal and playful image that embeds directional fluid movement in a physical, kinesthetic memory. The team metaphor makes it easy to reason through clinical scenarios.
Example usage
NLE: 'A malnourished patient with low serum albumin develops bilateral pitting edema. What is the mechanism?' Recall: Team ONCO (albumin) is weak. Answer: Decreased oncotic pressure.
Recall trigger
Tug of war — HYDRO pushes OUT, ONCO pulls IN.
Four Types of Shock and Their Causes
Memory aid
HCDO — 'HINDI CAN DO' (Tagalog-English mix for a student who just failed their exam — overwhelmed and collapsing!): H - Hypovolemic (loss of volume — hemorrhage, burns, dehydration); C - Cardiogenic (heart can't pump — MI, heart failure); D - Distributive (vessels dilate — septic, anaphylactic, neurogenic); O - Obstructive (blocked flow — tamponade, PE, tension pneumo). 'HINDI CAN DO' = the body HINDI (cannot) maintain circulation!
Why it works
The Taglish phrase 'HINDI CAN DO' is funny, culturally on-point for Filipino students, and the emotional disappointment narrative makes it stick. HCDO is the acronym.
Example usage
NLE: 'Classify the shock types.' Recall HCDO: Hypovolemic, Cardiogenic, Distributive, Obstructive.
Recall trigger
HCDO — HINDI CAN DO.
Stages of Shock: Initial, Compensatory, Progressive, Refractory
Memory aid
Think of a sinking bangka (boat) on a Philippine river: 1. INITIAL — the boat springs a tiny leak. No one notices yet, but water is slowly entering (anaerobic metabolism, lactic acid — no obvious signs). 2. COMPENSATORY — the crew starts bailing hard! Heart rate goes up, they row faster, someone radios for help (body compensates — increased HR, vasoconstriction, RAAS activated; BP still okay). THIS IS THE RESCUE WINDOW. 3. PROGRESSIVE — too much water, bailing is failing. The engine sputters (hypotension, organ hypoperfusion, acidosis). 4. REFRACTORY — the bangka has SUNK. Recovery is no longer possible (irreversible organ failure, death).
Why it works
The sinking bangka (a culturally familiar Philippine image) creates a powerful narrative arc that maps perfectly to the physiologic progression of shock, embedding urgency and clinical decision-making context.
Example usage
NLE: 'In which stage of shock is BP still maintained?' Recall the crew bailing hard — Compensatory stage. Act NOW.
Recall trigger
Sinking bangka — 4 stages.
Earliest Sign of Shock — Restlessness and Anxiety
Memory aid
Picture a patient who CANNOT SIT STILL in bed — pulling at the IV line, asking 'ano na, ano na?' (what now, what now?) even though their BP looks okay. That restlessness = the brain crying out for MORE OXYGEN because cerebral perfusion is already dropping. This is Stage 1-2 (initial to compensatory). NEVER dismiss a restless patient. Restlessness = the brain's SOS.
Why it works
The relatable image of an agitated Filipino patient verbally expressing anxiety in Tagalog makes the clinical sign viscerally memorable. It also reinforces the critical nursing action: do NOT dismiss restlessness.
Example usage
NLE: 'A post-op patient becomes restless and anxious. BP is 110/70, HR 98. What should the nurse suspect?' Recall the 'ano na' patient. Answer: Early/compensatory shock — assess further immediately.
Recall trigger
'Ano na, ano na?' — restless patient = early shock.
Neurogenic Shock — EXCEPTION: Bradycardia + Warm Dry Skin (not tachycardia/cool skin)
Memory aid
Neurogenic shock is the REBEL of the shock family. Rhyme it: 'All shocks are FAST and COLD — but neuro's SLOW and BOLD.' Most shocks: tachycardia, cool clammy skin (sympathetic activation). Neurogenic shock (spinal cord injury, loss of sympathetic tone): BRADYCARDIA (slow HR) + WARM DRY SKIN (vessels dilated, no sweating because sympathetic tone is GONE). Remember: No sympathetic nerve = No speed, No cold sweat.
Why it works
Rhymes are processed by the brain's musical-rhythmic system, creating a second memory pathway. The contrast 'rebel of the shock family' makes neurogenic shock stand out as the exception — which is exactly when the NLE tests it.
Example usage
NLE: 'A patient with T4 spinal cord injury develops hypotension, HR 52, warm dry skin. What type of shock?' Recall the rebel rhyme. Answer: Neurogenic shock.
Recall trigger
'All shocks are fast and cold — but neuro's slow and bold.'
Priority Management of Shock — ABCs: Oxygen, Large-bore IV, Isotonic Fluids, Position
Memory aid
In shock, you do the OILP check — like checking your car engine in an emergency: O - Oxygen (high-flow, patent airway — oxygenate first!); I - IV access (large-bore, two if possible); L - Liquids (isotonic crystalloids — 0.9% NaCl or LR — unless cardiogenic); P - Position (supine with legs elevated — modified Trendelenburg, unless head injury or respiratory distress). OILP — Oil your engine so the car doesn't stop running!
Why it works
The car engine maintenance analogy is universally relatable in the Philippines. The OILP acronym clusters four priority actions in their correct priority order, which is exactly how NLE questions test nursing management.
Example usage
NLE: 'What are the priority nursing interventions in a patient with hypovolemic shock?' Recall OILP. Answer: Ensure airway/administer oxygen, establish large-bore IV, infuse isotonic fluids (0.9% NaCl or LR), position supine with legs elevated.
Recall trigger
OILP — check the car engine: Oxygen, IV, Liquids, Position.
Wound Healing Phases: Inflammatory, Proliferative, Maturation
Memory aid
Wound healing is like BUILDING A HOUSE after a typhoon (bagyo): 1. INFLAMMATORY PHASE (Days 1-4) — The aftermath. Bleeding stops (hemostasis), debris is cleared (phagocytosis by neutrophils and macrophages). The lot is CLEANED. Signs of inflammation are present — redness, heat, swelling, pain. 2. PROLIFERATIVE PHASE (Days 5-21) — CONSTRUCTION. Granulation tissue forms (collagen synthesis). You need MATERIALS: Vitamin C (for collagen), Protein (for building), Zinc (for immune/healing support). 3. MATURATION PHASE (21 days–2 years) — FINISHING TOUCHES. Scar remodels. House is complete but takes time to fully settle.
Why it works
Typhoon recovery is deeply resonant for Filipino students who have lived through or know of typhoon reconstruction. The three phases map perfectly, and the nutrient requirements are embedded in the 'construction materials' metaphor.
Example usage
NLE: 'What nutrients are essential during the proliferative phase of wound healing?' Recall construction materials. Answer: Vitamin C, protein, and zinc.
Recall trigger
Typhoon rebuilding — clean, construct, finish.
Cardiogenic Shock — Cautious Fluid Administration to Avoid Pulmonary Edema
Memory aid
Cardiogenic shock is like a CLOGGED SINK — the pump (heart) is broken. If you pour MORE WATER (aggressive IV fluids) into a clogged sink, it OVERFLOWS (pulmonary edema, baka lunurin ang pasyente!). So unlike hypovolemic shock where you flood the patient with fluids, in cardiogenic shock you give CAUTIOUS, LIMITED FLUIDS and focus on FIX THE PUMP (reperfusion, vasopressors like dopamine). Key: diagnose before you drown.
Why it works
The clogged sink is a simple household image. The Filipino phrase 'lunurin ang pasyente' (drown the patient) adds humor and urgency that makes this clinical caution unforgettable.
Example usage
NLE: 'In cardiogenic shock, aggressive IV fluid resuscitation is dangerous because?' Recall clogged sink overflowing. Answer: It can worsen pulmonary edema.
Recall trigger
Clogged sink — cautious fluids in cardiogenic shock.
Negative Feedback Loop in Homeostasis
Memory aid
A negative feedback loop is exactly like an AIRCON THERMOSTAT in a Philippine summer: You set it to 23°C. Room gets HOT (deviation from set point) → thermostat DETECTS IT → AC COOLS THE ROOM (response that REVERSES the change) → temperature returns to 23°C → AC slows down. The body's homeostatic mechanisms work the SAME WAY: rising body temperature → sweating + vasodilation → temperature returns to normal. NEGATIVE feedback = NEGATIVE of the change (it opposes and reverses it).
Why it works
The AC thermostat is a daily lived experience for Filipino students in a tropical country. It makes the abstract concept of negative feedback completely concrete and self-explanatory.
Example usage
NLE: 'What type of feedback loop maintains body temperature?' Recall the AC. Answer: Negative feedback loop.
Recall trigger
Aircon thermostat — negative feedback.
Shift to the Left — Increased Immature Neutrophils in Infection/Inflammation
Memory aid
Imagine the WBC maturity scale as a NUMBER LINE, mature cells on the RIGHT (like fully cooked rice), immature cells on the LEFT (like raw bigas/rice). 'Shift to the left' means the bone marrow is releasing IMMATURE (raw) neutrophils (bands) into the blood because it's panicking — infection is overwhelming and it can't wait for cells to fully mature. Think: when the sinaing (cooking rice) is burning, you serve HALF-COOKED RICE because you're in a hurry. Shift to the left = body in emergency mode, releasing half-cooked neutrophils.
Why it works
The Filipino cooking analogy (sinaing/rice) is intimately familiar and funny. The visual number line concept of left = immature is easy to reconstruct on exam day.
Example usage
NLE: 'A patient's CBC shows 20% band neutrophils. What does this indicate?' Recall half-cooked rice. Answer: 'Shift to the left' — increased immature neutrophils indicating severe infection/inflammation.
Recall trigger
Half-cooked rice — shift to the left = immature neutrophils.
Wound Healing Types: Primary, Secondary, Tertiary Intention
Memory aid
Think of WOUND CLOSURE like ROAD REPAIR in the Philippines: PRIMARY INTENTION (best) — like a brand-new concrete road: edges are perfectly aligned (sutured wound), minimal gap, smooth finish, little scarring. SECONDARY INTENTION — like filling a pothole by piling up gravel from the bottom: open wound, granulates up from the base, takes longer, more scarring. TERTIARY INTENTION (delayed) — like a road closed due to flood: they plan to pave it but WAIT for the flood (infection) to clear, then close it later.
Why it works
Road repair is a universally relevant and slightly humorous reference for Filipinos. The three road conditions map exactly to the three types of wound healing.
Example usage
NLE: 'A dirty laceration is irrigated, left open, and sutured on day 4. What type of wound healing is this?' Recall flooded road — delayed closure. Answer: Tertiary (third) intention.
Recall trigger
Road repair — new concrete, pothole, flooded road.
Urine Output Target in Shock — Minimum 30 mL/hr as Indicator of Adequate Perfusion
Memory aid
Rhyme to remember: 'THIRTY IS THE FLOOR — less means trouble is in store!' Urine output less than 30 mL/hr = oliguria = kidneys are NOT being perfused = shock progressing. Think of it as the minimum wage of perfusion — the kidneys are the first to 'strike' (stop working) when blood flow drops. Monitor I&O every hour in shock. Thirty mL/hr = kidneys are paid (perfused). Below thirty = they've gone on strike.
Why it works
The rhyme creates a rhythmic memory anchor. The 'minimum wage' analogy (a topic relevant to Filipino workers) adds a second layer of meaning that is culturally resonant and emotionally engaging.
Example usage
NLE: 'What is the minimum acceptable urine output in a patient being treated for shock?' Recall the rhyme. Answer: 30 mL/hr.
Recall trigger
'Thirty is the floor' — 30 mL/hr urine output.
Revision game
I am the stage of GAS where your jeepney engine overheats and you pull over. Adaptive reserves are gone. Who am I?
Answer
Exhaustion Stage of General Adaptation Syndrome
Memory link
A1 — Jeepney in EDSA: ARE stages. The overheated engine = Exhaustion.
I am the 'broken ATM' phenomenon. You have money in the account, but your wallet is empty. You look broke even though you're not. What clinical condition am I?
Answer
Third-Spacing
Memory link
A8 — Broken ATM analogy: fluid is present but not accessible in the intravascular compartment.
I am the REBEL of the shock family. While all my siblings are fast and cold, I am SLOW and WARM. I happen when you injure your spinal cord. Who am I?
Answer
Neurogenic Shock
Memory link
A13 — 'All shocks are fast and cold — but neuro's slow and bold.' Bradycardia + warm dry skin.
I am a Latin word that means SWELLING and is one of the five cardinal signs of inflammation. I happen because fluid leaks from capillaries into tissue. What am I?
Answer
Tumor (Swelling/Edema in inflammation)
Memory link
A4 — Red Cats Take Deep Flights. T = Tumor = the cat swollen from a bee sting.
I am the SUGAR BOSS. I raise blood glucose, fire the immune workers, break down protein and fat, and suppress inflammation. I am a stress hormone released by the adrenal cortex. Who am I?
Answer
Cortisol
Memory link
A3 — SUGAR: Sugar up, Undermines immunity, Goes after protein/fat, Anti-inflammatory, Retains sodium (via aldosterone stimulus).
In wound healing, I am the CONSTRUCTION phase. Fibroblasts lay down collagen, granulation tissue forms, and you need Vitamin C, protein, and zinc as building materials. Which phase am I?
Answer
Proliferative Phase of Wound Healing
Memory link
A15 — Typhoon recovery: construction phase = proliferative phase, needing construction materials (Vit C, protein, zinc).
I am the MINIMUM WAGE of organ perfusion. If urine output falls below me per hour, the kidneys have 'gone on strike' and shock is progressing. What number am I?
Answer
30 mL/hr (minimum acceptable urine output)
Memory link
A20 — 'Thirty is the floor.' 30 mL/hr = kidneys are paid (perfused).
I am the HALF-COOKED RICE of the WBC world. The lab report says I am elevated. I am an immature neutrophil (band cell) released in emergency because the body couldn't wait for full maturation. What clinical finding am I?
Answer
Shift to the Left (increased immature neutrophils/bands)
Memory link
A18 — Half-cooked sinaing: bone marrow releases immature neutrophils during overwhelming infection.
Formula mnemonics
Urine Output Target ≥ 30 mL/hr
Mnemonic
THIRTY IS THE FLOOR — below means no more (adequate perfusion).
When to use
When monitoring a patient in any stage of shock, post-operative fluid management, or any critically ill patient on hourly I&O monitoring. If UO < 30 mL/hr, suspect inadequate perfusion or worsening shock and notify the physician immediately.
What each part means
30 mL/hr is the minimum acceptable hourly urine output in adults with shock. It reflects adequate renal perfusion, which indicates that cardiac output and BP are sufficient to perfuse the kidneys.
Starling Forces: Net Filtration = (Pc - Pi) - (πc - πi) where Pc = capillary hydrostatic pressure, Pi = interstitial hydrostatic pressure, πc = plasma oncotic pressure, πi = interstitial oncotic pressure
Mnemonic
PUSH minus PULL = flow direction. Hydrostatic PUSHES out (Pc↑ = edema). Oncotic PULLS in (πc↓ = edema). Both cause edema but in opposite ways.
When to use
When explaining edema formation in clinical conditions: heart failure (elevated Pc), hypoalbuminemia or malnutrition (decreased πc), burns or sepsis (increased Pi and altered permeability). This logic is tested in NLE questions about edema mechanisms.
What each part means
Pc (capillary hydrostatic pressure) pushes fluid OUT of capillaries. Pi (interstitial hydrostatic pressure) pushes fluid BACK IN. πc (plasma oncotic, mainly albumin) pulls fluid INTO capillaries. πi (interstitial oncotic) pulls fluid OUT. Net result determines direction of fluid movement.
GAS Stages: Alarm (A) → Resistance (R) → Exhaustion (E)
Mnemonic
ARE — the body's emergency response: A = Alert and activated, R = Resisting and adapting, E = Empty and exhausted.
When to use
When asked about Selye's stress response, explaining postoperative patient physiologic changes, or reasoning through why a long-term ICU patient develops opportunistic infections.
What each part means
A (Alarm): SNS activation, catecholamines released, HR/BP/RR increase, blood glucose rises. R (Resistance): Body attempts homeostasis, hormones normalize if stressor resolves. E (Exhaustion): Prolonged stress depletes reserves; immunosuppression, organ failure, possible death.
Quick recall chains
Five Cardinal Signs of Inflammation (Latin Terms)
Recall test
Can you name all five cardinal signs of inflammation in Latin and English without looking? Visualize the red cat story. Say: Rubor, Calor, Tumor, Dolor, Functio laesa.
Memory chain
Story: A RED CAT (Rubor) sat in the HOT sun (Calor), became SWOLLEN from a bee sting (Tumor), CRIED in PAIN (Dolor), and could no longer FLY (Functio laesa). The Red Cat Could Not Fly After Dolor. Acronym: RCTDF — 'Red Cats Take Deep Flights.'
Items to remember
- Rubor (Redness)
- Calor (Heat)
- Tumor (Swelling)
- Dolor (Pain)
- Functio laesa (Loss of Function)
Stages of Shock (Initial to Refractory)
Recall test
A patient in shock has HR 110, BP 100/70, restless and anxious, but BP is maintained. What stage? Answer: Compensatory. Why must you act NOW? Because the next stage is Progressive — BP drops.
Memory chain
The SINKING BANGKA: 1. Tiny LEAK (initial — no one sees it yet). 2. CREW BAILS HARD (compensatory — body fights back, BP maintained — ACT NOW). 3. BAILING FAILS (progressive — organs failing). 4. BANGKA SINKS (refractory — no return). Chain word: ICPR — 'I Carefully Prioritized Rescue.'
Items to remember
- Initial (anaerobic metabolism begins, no obvious signs)
- Compensatory (body compensates, BP still maintained, restlessness)
- Progressive (compensation fails, hypotension, organ hypoperfusion)
- Refractory/Irreversible (profound organ failure, no recovery)
Four Types of Shock (HCDO)
Recall test
Name all 4 shock types and one specific cause of each. H-C-D-O. Go!
Memory chain
HCDO — 'HINDI CAN DO': H = Hypovolemia (wala nang dugo/tubig). C = Cardiogenic (puso ay sira). D = Distributive (lahat lumapit sa labas, maldistribution). O = Obstructive (may harang sa puso o baga). Remember: The body 'HINDI CAN DO' circulation anymore.
Items to remember
- Hypovolemic — loss of volume (hemorrhage, burns, dehydration)
- Cardiogenic — pump failure (MI, heart failure, dysrhythmias)
- Distributive — vessel dilation (septic, anaphylactic, neurogenic)
- Obstructive — physical block (tamponade, PE, tension pneumothorax)
Priority Nursing Interventions in Shock (OILP)
Recall test
Without looking: What are the 4 priority interventions in shock? Say OILP and what each stands for.
Memory chain
OILP — Check the car engine in an emergency: Pour OIL (O-I-L-P). First: Air filter (Oxygen). Second: Oil tube (IV access). Third: Fluid reservoir (Liquids/Fluids). Fourth: Pump angle (Position — legs up, gravity to core). Exception notes: Cardiogenic = cautious fluids; Head injury/resp distress = no Trendelenburg.
Items to remember
- O — Oxygen (patent airway, high-flow O2)
- I — IV access (large-bore, two lines if hemorrhagic)
- L — Liquids (isotonic crystalloids: 0.9% NaCl or Lactated Ringer's)
- P — Position (supine with legs elevated — modified Trendelenburg)
Cellular Adaptations (Five Types — Reyes Family)
Recall test
A patient with hypertension develops increased left ventricular wall thickness. Which cellular adaptation? Recall Kuya HYPER at the gym. Answer: Hypertrophy.
Memory chain
The REYES family: ATE got thin (Atrophy). KUYA HYPER got huge (Hypertrophy). The family MULTIPLIED (Hyperplasia). META changed career (Metaplasia — reversible). DIS is the rebellious disordered one (Dysplasia — premalignant). Ate-Kuya-Hayperplas-Meta-Dis = AKHMD.
Items to remember
- Atrophy — decreased cell size
- Hypertrophy — increased cell size
- Hyperplasia — increased cell number
- Metaplasia — change to different cell type (reversible)
- Dysplasia — disordered abnormal growth (premalignant)
Diagrams
Homeostasis, Inflammation and Cellular Response — Master Concept Map
A comprehensive mind map of all major topics in the chapter. Use this as a visual overview before studying details. Each branch represents a major section, and the leaves show the specific concepts tested in the NLE. Start from the center and trace each branch to reinforce how all concepts connect.
Stages of Shock and Priority Nursing Actions — Decision Flowchart
This flowchart guides clinical decision-making from initial assessment through staged shock recognition to type-specific priority interventions. Use it to practice clinical reasoning: start at the top with a restless patient, follow the branches based on vital signs and stage of shock, and arrive at the correct priority actions. The warning icons highlight the two key exceptions — cardiogenic shock (cautious fluids) and neurogenic shock (bradycardia + warm dry skin).
General Adaptation Syndrome and Stress Hormone Effects
This flowchart traces the complete General Adaptation Syndrome from stressor to outcome. Note how the alarm stage activates two parallel pathways (SNS and HPA axis), each with distinct hormone effects. The clinical consequences — hyperglycemia, fluid retention, immunosuppression — are the 'why' behind common postoperative complications. Use this diagram to link GAS stages to clinical patient presentations.
Cellular Adaptation States — From Normal to Pathologic
This state diagram shows how a normal cell transitions through various adaptive states under different stressors. Key insight: most adaptations (atrophy, hypertrophy, hyperplasia) are REVERSIBLE if the stressor is removed. Metaplasia is also reversible early. Dysplasia is the critical warning sign — it can progress to neoplasia (cancer) if the injurious stimulus continues. This diagram reinforces why early intervention and removal of stressors (e.g., smoking cessation) is clinically essential.