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NLE Respiratory NursingAcute Respiratory Failure & ARDSMemory Anchors

Filipino reviewers do well on Acute Respiratory Failure & ARDS once they have personal mnemonics — the anchors that make the concept local, memorable, and quick to surface under NLE time pressure. This page gathers the best-working anchors for Professional Regulation Commission (PRC) — Board of Nursing's typical Respiratory Nursing items on this chapter.

Exam context

On the NLE 2026, the Respiratory Nursing subtest carries a "Core" weight in Professional Regulation Commission (PRC) — Board of Nursing's pattern. Acute Respiratory Failure & ARDS lands at position 4th out of 4 in the standard review order. Target score is 75% weighted average with no sub-test below 60%, and roughly 50 items come from Respiratory Nursing on a typical NLE paper.

Acute Respiratory Failure & ARDS - Memory Anchors

Your brain is not a filing cabinet — it's a story machine. Research in cognitive psychology shows that vivid stories, absurd analogies, and emotional hooks are remembered up to 7x better than plain facts. This collection of memory anchors transforms dry clinical definitions into unforgettable mental movies. Each anchor is built around a strong 'hook' — a bizarre image, a familiar Filipino reference, or a catchy rhythm — so that when exam pressure is high, your brain can retrieve the answer in seconds. Use these alongside your notes: read the anchor, close your eyes and picture it, then test yourself. Consistency builds the neural pathways that make recall automatic on exam day.

Anchors

Tags

  • definition
  • classification
  • ABG values

Topic

Acute Respiratory Failure — Types

Concept

Type I Respiratory Failure = Hypoxaemic (PaO2 <60 mmHg) — oxygenation problem

Anchor Id

A1

Difficulty

easy

Memory Aid

Type I = 'ONE thing is wrong — Oxygen.' Picture the number 1 shaped like a tank of O2. The 'O' in 'One' stands for Oxygen. Type I only has ONE abnormal value: low PaO2. The threshold is 60 — think '6 o'clock is ZERO oxygen time.' When it hits 6, the O2 goes to zero.

Anchor Type

mnemonic

Why It Works

The visual link between the number '1' and 'one problem (oxygen)' creates a dual-coding memory trace. The '6 o'clock' image anchors the numerical threshold 60.

Example Usage

Exam asks: 'Which type of respiratory failure is characterized by PaO2 <60 mmHg?' → Think: Type 1 = One = Oxygen → Type I, hypoxaemic failure.

Recall Trigger

See the number '1' → think 'One = Oxygen problem'

Tags

  • definition
  • classification
  • ABG values

Topic

Acute Respiratory Failure — Types

Concept

Type II Respiratory Failure = Hypercapnic (PaCO2 >50 mmHg, pH <7.35) — ventilation problem

Anchor Id

A2

Difficulty

easy

Memory Aid

Type II = 'TWO gases are wrong — CO2 is TOO HIGH, and pH is TOO LOW.' The Roman numeral II looks like two exhaust pipes blowing out too much CO2. Remember: 'Type II = Too Much CO2.' The threshold: PaCO2 >50 = 'FIVE-ZERO means ventilation is a NO-NO.' pH <7.35 = 'below 7.35, the patient is in distress.'

Anchor Type

mnemonic

Why It Works

The rhyme 'Too Much CO2' and the visual of two exhaust pipes blowing smoke link Type II to hypercapnia and ventilation failure simultaneously.

Example Usage

Exam asks: 'A COPD patient has PaCO2 of 55 mmHg and pH 7.30. What type of failure?' → Two pipes, too much CO2 → Type II, hypercapnic failure.

Recall Trigger

See 'II' → picture two exhaust pipes → Too Much CO2 = ventilation problem

Tags

  • sequence
  • clinical signs
  • priority
  • assessment

Topic

Acute Respiratory Failure — Manifestations

Concept

Early signs of hypoxaemia: Restlessness, Agitation, Anxiety, Tachypnoea, Tachycardia — NOT cyanosis

Anchor Id

A3

Difficulty

medium

Memory Aid

Remember 'RAATT' — Restlessness, Agitation, Anxiety, Tachypnoea, Tachycardia. Pronounce it like 'RAT!' — A RAT scurrying in a panic is restless, agitated, anxious, breathing fast, and its heart is racing. The RAT is EARLY — it runs BEFORE the cat (cyanosis and bradycardia) arrives. So when you see RAATT symptoms, the RAT is warning you EARLY. Cyanosis is the CAT — it arrives LATE.

Anchor Type

acronym

Why It Works

The vivid animal metaphor (rat = early, cat = late) creates a memorable narrative sequence. 'RAATT' is phonetically distinctive and easy to recall under pressure.

Example Usage

Exam asks: 'Which is the earliest sign of hypoxaemia?' → RAATT → Restlessness is earliest, NOT cyanosis (cyanosis = late, like the cat arriving last).

Recall Trigger

Think 'RAATT like a panicking rat' → early hypoxaemia signs

Tags

  • clinical signs
  • sequence
  • priority
  • assessment

Topic

Acute Respiratory Failure — Manifestations

Concept

Late/ominous signs of hypoxaemia: Cyanosis, Bradycardia, Dysrhythmias, Decreased LOC, Respiratory Arrest

Anchor Id

A4

Difficulty

medium

Memory Aid

Think of a jeepney engine dying. At first, the passengers (cells) get restless and agitated (early signs). Then the engine slows down (bradycardia), starts misfiring (dysrhythmias), the driver loses consciousness (decreased LOC), and finally — the jeepney stops completely (respiratory arrest). Cyanosis = the blue exhaust smoke you see when the engine is truly failing. These signs mean the jeepney is about to die — it is a CODE BLUE emergency.

Anchor Type

analogy

Why It Works

The jeepney is a universally familiar Filipino image. Mapping physiological deterioration onto a familiar machine malfunction creates a strong narrative memory.

Example Usage

Exam: 'A patient develops cyanosis and bradycardia. What stage of hypoxaemia is this?' → Jeepney is dying → Late, ominous signs → Prepare for intubation, immediate intervention.

Recall Trigger

Jeepney dying → late signs of hypoxaemia

Tags

  • definition
  • hallmark
  • assessment
  • diagnosis

Topic

ARDS — Hallmarks

Concept

ARDS Hallmark = Refractory Hypoxaemia (does NOT improve with supplemental O2) + Bilateral Infiltrates

Anchor Id

A5

Difficulty

medium

Memory Aid

Imagine a patient named Ardo (ARDS). Ardo is drowning — but in his own lung fluid, not the sea. You give him an oxygen mask (supplemental O2) but his SpO2 barely moves. You increase the flow — still nothing. Ardo's alveoli are flooded with protein-rich fluid, like a barangay flooded after a typhoon. No matter how much you try to pump out water (O2), the flood is too deep. That is REFRACTORY hypoxaemia — oxygen alone cannot fix it. And the chest X-ray? It looks like a total white-out — like the whole Philippines covered in Ondoy-level flood waters: bilateral, diffuse, everywhere.

Anchor Type

micro_story

Why It Works

The flooding analogy (resonant with Filipino typhoon experience) makes the pathophysiology visceral and unforgettable. The name 'Ardo' = mnemonic hook for ARDS.

Example Usage

Exam: 'What is the hallmark of ARDS?' → Ardo + flood = refractory hypoxaemia that does NOT improve with supplemental O2 + bilateral white-out on CXR.

Recall Trigger

Picture 'Ardo' drowning in his own lungs — O2 not working

Tags

  • etiology
  • priority
  • clinical correlation

Topic

ARDS — Pathophysiology/Causes

Concept

Most common trigger of ARDS = Sepsis

Anchor Id

A6

Difficulty

easy

Memory Aid

Visualize the letters ARDS with a giant S at the center: A-R-D-S. The S is BIG and BOLD — S for SEPSIS, the most common cause. It's like the S is the engine driving the whole ARDS machine. Every time you write ARDS on your exam paper, mentally make that S extra large. Secondary causes: ASPiration (another S-sound!), trauma, pancreatitis — but SEPSIS is #1.

Anchor Type

visual_association

Why It Works

Visual emphasis (making the S bold) creates a perceptual anchor. The alliterative connection (ARDS → S → Sepsis) reinforces retrieval.

Example Usage

Exam: 'A 45-year-old with gram-negative bacteraemia develops refractory hypoxaemia and bilateral infiltrates. The MOST likely trigger is?' → Big S → Sepsis.

Recall Trigger

See 'ARDS' → mentally enlarge the 'S' → Sepsis

Tags

  • management
  • intervention
  • mechanical ventilation

Topic

ARDS — Management

Concept

ARDS Management: Mechanical Ventilation with PEEP + Low Tidal Volume (~6 mL/kg) + Prone Positioning

Anchor Id

A7

Difficulty

medium

Memory Aid

Remember 'PLP' — PEEP, Low tidal volume, Prone positioning. Think: 'Please Let Patient Breathe Better.' P = PEEP keeps alveoli open. L = Low tidal volume (6 mL/kg) prevents further lung damage. P = Prone positioning improves V/Q matching. Imagine flipping a patient face-down like a pancake (Filipino hotcake!) — the 'PLP pancake flip' opens collapsed posterior alveoli and helps oxygenation. Nurses flip hotcakes; nurses also flip ARDS patients.

Anchor Type

acronym

Why It Works

PLP is a short, pronounceable acronym. The pancake/hotcake analogy is culturally familiar and adds humor, which boosts memory consolidation.

Example Usage

Exam: 'Which interventions are used in ARDS management?' → PLP: PEEP + Low TV 6 mL/kg + Prone positioning.

Recall Trigger

Think 'PLP hotcake flip' → PEEP, Low TV, Prone = ARDS management

Tags

  • definition
  • mechanism
  • complication

Topic

Mechanical Ventilation — PEEP

Concept

PEEP = Positive End-Expiratory Pressure — keeps alveoli open at end of expiration; too much PEEP = decreased venous return + barotrauma

Anchor Id

A8

Difficulty

medium

Memory Aid

PEEP is like a small pebble propped under a door to keep it slightly open. At the end of each breath (expiration), the door (alveolus) wants to slam shut. PEEP is the pebble that prevents it from closing completely, keeping the alveolus open and ready for the next breath. BUT if the pebble is too big (too much PEEP), it blocks the hallway — venous return is reduced (blood can't return to the heart efficiently) and the door frame cracks (barotrauma). The pebble must be just right — Goldilocks PEEP.

Anchor Type

analogy

Why It Works

The door-and-pebble analogy makes an abstract ventilator concept concrete. The 'too big pebble' naturally maps to the side effects of excessive PEEP.

Example Usage

Exam: 'What is the purpose of PEEP in ARDS?' → Pebble keeps door open → PEEP keeps alveoli open at end-expiration. Too much? Blocks hallway → decreased venous return + barotrauma.

Recall Trigger

Think 'pebble under a door' → PEEP

Tags

  • clinical signs
  • priority
  • assessment

Topic

Pulmonary Embolism — Manifestations

Concept

Pulmonary Embolism Classic Symptoms: Sudden Dyspnoea, Pleuritic Chest Pain, Tachypnoea, Tachycardia, Sense of Impending Doom

Anchor Id

A9

Difficulty

medium

Memory Aid

Picture a patient named Pedro who was lying in bed after his knee surgery. Suddenly, he grabs your hand and says with terror in his eyes: 'Ate, pakiramdam ko, mamamatay na ako!' (classic 'sense of impending doom'). He is gasping (dyspnoea), breathing very fast (tachypnoea), his heart is racing (tachycardia), and he winces every time he takes a deep breath (pleuritic chest pain — worse with breathing). You look at his left leg — it is swollen and warm. A clot from his DVT just flew up to his lung. Pedro has PE.

Anchor Type

micro_story

Why It Works

The Filipino-language dialogue ('mamamatay na ako') creates a vivid, culturally resonant emotional memory. The post-surgical DVT-to-PE timeline is clinically realistic and reinforces risk factor recognition simultaneously.

Example Usage

Exam: 'A post-op patient suddenly says he feels he is going to die, with dyspnoea and tachycardia. Priority action?' → Pedro's story → Suspect PE → oxygen, elevate HOB, call physician, prepare anticoagulants.

Recall Trigger

'Mamamatay na ako!' → PE symptoms

Tags

  • risk factors
  • pathophysiology
  • definition

Topic

Pulmonary Embolism — Risk Factors

Concept

Virchow's Triad — Risk factors for PE/DVT: Venous Stasis, Hypercoagulability, Endothelial Injury

Anchor Id

A10

Difficulty

easy

Memory Aid

Remember 'SHE' — Stasis, Hypercoagulability, Endothelial injury. Think: 'SHE clots.' SHE = the three reasons blood clots and causes DVT/PE. Stasis = blood not moving (immobility, long flights, bed rest). Hypercoagulability = blood too sticky (cancer, pregnancy, OCPs). Endothelial injury = damaged vessel walls (surgery, trauma, central lines). Picture a woman named 'SHE' who just came off a long Cebu Pacific flight (stasis), is pregnant (hypercoagulability), and had an IV line inserted (endothelial injury) — SHE is at maximum PE risk!

Anchor Type

acronym

Why It Works

SHE is a memorable, one-syllable trigger. The Filipino airline reference grounds the 'stasis' concept in a familiar scenario (long OFW flights are a known PE risk among Filipinos).

Example Usage

Exam: 'What is Virchow's Triad?' → SHE: Stasis, Hypercoagulability, Endothelial injury.

Recall Trigger

Think 'SHE clots' → Stasis, Hypercoagulability, Endothelial injury = Virchow's Triad

Tags

  • diagnostics
  • lab values
  • clinical decision

Topic

Pulmonary Embolism — Diagnostics

Concept

D-Dimer: Normal = helps RULE OUT PE (sensitive, not specific); High = does NOT confirm PE

Anchor Id

A11

Difficulty

medium

Memory Aid

D-Dimer = 'D for DENY.' A NORMAL D-Dimer DENIES PE (rules it out). A HIGH D-Dimer does NOT confirm PE — it just says 'I can't deny it.' Think: 'D-Dimer can only say NO. It cannot say YES.' Like a security guard who can clear you ('You're not suspicious') but cannot arrest you ('You might be suspicious, but I'm not sure'). CTPA is the one that can confirm (arrest) the diagnosis.

Anchor Type

mnemonic

Why It Works

The security guard analogy simplifies a nuanced clinical concept (sensitivity vs. specificity) into an intuitive role metaphor.

Example Usage

Exam: 'Which statement about D-dimer is correct?' → D for DENY → A NORMAL D-dimer helps RULE OUT PE in low-risk patients. High D-dimer requires CTPA to confirm.

Recall Trigger

'D for DENY' → normal D-dimer rules out PE; high D-dimer is non-specific

Tags

  • pharmacology
  • lab monitoring
  • anticoagulants

Topic

Pulmonary Embolism — Pharmacology

Concept

Anticoagulant Monitoring: Heparin → aPTT; Warfarin → PT/INR (target 2.0–3.0)

Anchor Id

A12

Difficulty

medium

Memory Aid

Remember 'HaPPy WaR': Heparin → aPTT; Warfarin → PT/INR. 'HaPPy' = Heparin, aPTT (the aPTT is inside 'haPPy'). 'WaR' = Warfarin, PT/INR (a war of clotting and bleeding). The target for the WaR is 2–3 (think: '2 to 3 enemies defeated'). For heparin, the target aPTT is 1.5–2.5x normal — 'one and a half to two and a half times more time to clot.'

Anchor Type

mnemonic

Why It Works

The 'HaPPy WaR' phrase pairs each drug with its lab test using embedded letters. The numerical targets are linked to vivid metaphors (enemies defeated, time to clot).

Example Usage

Exam: 'Which lab value should the nurse monitor for a patient on warfarin?' → WaR → PT/INR, target 2.0–3.0.

Recall Trigger

'HaPPy WaR' → Heparin-aPTT; Warfarin-PT/INR

Tags

  • pharmacology
  • antidotes
  • anticoagulants

Topic

Pulmonary Embolism — Pharmacology

Concept

Antidotes: Heparin → Protamine Sulfate; Warfarin → Vitamin K

Anchor Id

A13

Difficulty

easy

Memory Aid

Sing to the tune of 'Bahay Kubo' rhythm: 'Heparin, heparin, antidote ko — Protamine Sulfate, iyan ang sagot ko. Warfarin naman, kung mag-bleed ka — Vitamin K ang ibibigay sa iyo!' Translation: Heparin's antidote is Protamine Sulfate; Warfarin's antidote is Vitamin K. The rhyme sticks because it uses a familiar Filipino childhood melody.

Anchor Type

rhyme

Why It Works

Setting facts to a familiar melody (Bahay Kubo) uses procedural memory pathways (music memory) which are highly resistant to forgetting. Cultural familiarity deepens the encoding.

Example Usage

Exam: 'A patient on heparin develops major bleeding. Which antidote is given?' → Hum the tune → Protamine Sulfate.

Recall Trigger

Hum the Bahay Kubo tune → antidotes appear

Tags

  • pharmacology
  • complication
  • monitoring
  • anticoagulants

Topic

Pulmonary Embolism — Pharmacology

Concept

HIT = Heparin-Induced Thrombocytopenia — monitor PLATELETS with heparin

Anchor Id

A14

Difficulty

hard

Memory Aid

HIT = Heparin HITS the platelets. Imagine heparin as a bully who HITS (punches) the platelets, causing them to drop. The cruel irony: heparin is supposed to PREVENT clots, but in HIT, the antibodies paradoxically cause CLOTS while platelets go DOWN. Picture a bully (heparin) punching platelets off a shelf — they fall (thrombocytopenia), but the mess creates a clot on the floor (paradoxical thrombosis). Monitor: check platelet count routinely on heparin therapy.

Anchor Type

visual_association

Why It Works

The bully metaphor captures the paradox of HIT (anticoagulant causing clots) in a memorable, slightly absurd image. Absurdity enhances hippocampal encoding.

Example Usage

Exam: 'A patient on heparin has a dropping platelet count. What should the nurse suspect?' → HIT: Heparin-Induced Thrombocytopenia → stop heparin, notify physician.

Recall Trigger

'HIT = Heparin HITS platelets' → thrombocytopenia → monitor platelet count

Tags

  • mechanical ventilation
  • intervention
  • priority
  • alarm response

Topic

Mechanical Ventilation — Alarms

Concept

Ventilator Alarm: High Pressure = Obstruction (secretions, kink, biting tube, bronchospasm); Low Pressure = Leak/Disconnection

Anchor Id

A15

Difficulty

medium

Memory Aid

Think of the ventilator tubing as a garden hose. HIGH pressure alarm = something is BLOCKING the hose (kink, dirt/secretions clogging the end, someone biting the hose, or the nozzle is squeezed shut/bronchospasm). The water pressure goes UP because it can't get through. LOW pressure alarm = the hose has a HOLE or is DISCONNECTED — water (air) is leaking out somewhere, so pressure drops. Action rule: HIGH = check for obstruction (suction, straighten, check patient); LOW = check for leak or disconnection. If you can't fix it fast → disconnect and BAG the patient.

Anchor Type

analogy

Why It Works

The garden hose is a universal, tangible object. Mapping HIGH = blocked and LOW = leaking provides an intuitive physical model that transfers directly to clinical reasoning.

Example Usage

Exam: 'The ventilator high-pressure alarm sounds. What is the priority nursing action?' → Hose is blocked → assess for secretions, kink, biting; suction if needed. If unresolved → bag-valve-mask.

Recall Trigger

Garden hose → HIGH = blocked → obstruction; LOW = leaking → disconnection

Tags

  • prevention
  • bundle
  • mechanical ventilation
  • complication

Topic

Mechanical Ventilation — VAP Prevention

Concept

VAP Prevention Bundle: HOB 30–45°, Daily Sedation Interruption, Oral Care with Chlorhexidine, DVT Prophylaxis, Stress Ulcer Prophylaxis

Anchor Id

A16

Difficulty

medium

Memory Aid

Remember 'HEAD-S': HOB elevation 30–45°, Every day sedation interruption (daily wean assessment), Antiseptic oral care (chlorhexidine), DVT prophylaxis, Stress ulcer prophylaxis. Picture a patient with a HEAD-S (headset) on — wearing headphones means their head is UP (HOB elevated), they are alert and awake (sedation interrupted), they brush their mouth daily (oral care), and their legs are protected (DVT stockings) while their stomach is protected (stress ulcer meds). HEAD-S keeps VAP away.

Anchor Type

acronym

Why It Works

HEAD-S is a phonetically vivid acronym. The headset image connects all five bundle components to a single visual object.

Example Usage

Exam: 'Which intervention is part of the VAP prevention bundle?' → HEAD-S → HOB at 30–45° is the most commonly tested answer.

Recall Trigger

Patient with a headset → HEAD-S → VAP bundle

Tags

  • management
  • oxygen therapy
  • COPD
  • intervention

Topic

Acute Respiratory Failure — Management

Concept

Type II RF Management: Controlled Oxygen (SpO2 88–92%), support ventilation, BiPAP, prepare for intubation

Anchor Id

A17

Difficulty

hard

Memory Aid

A COPD patient with Type II failure is like a car that runs on a special fuel mixture. Give too much pure oxygen (like the wrong fuel) and you REMOVE the hypoxic drive — the only stimulus keeping them breathing. The car's engine (respiratory drive) sputters and stops. So give CONTROLLED oxygen — just enough to keep SpO2 at 88–92% (not 100%!). Think: 'COPD patients: 88–92, not 98–99.' Use BiPAP to help them blow off CO2 (like a turbocharger for exhalation). If pH keeps falling → intubate.

Anchor Type

analogy

Why It Works

The 'wrong fuel' analogy captures why excess oxygen is dangerous in Type II RF. The number anchor '88–92' is paired with the concept to prevent the common mistake of giving high-flow O2.

Example Usage

Exam: 'What SpO2 target is appropriate for a COPD patient in Type II respiratory failure?' → Wrong fuel analogy → 88–92%, NOT higher.

Recall Trigger

COPD + wrong fuel → controlled O2, 88–92% target

Tags

  • diagnostics
  • imaging
  • CXR findings

Topic

ARDS — Diagnostics

Concept

ARDS CXR Finding: Diffuse Bilateral 'White-Out' Infiltrates (Ground-Glass Appearance)

Anchor Id

A18

Difficulty

easy

Memory Aid

Imagine a chest X-ray as a clear glass window. Normally, the lung fields are dark (air is black on X-ray). In ARDS, the alveoli are flooded — so the window fogs up completely, like a car windshield in heavy Manila morning fog. Both sides are foggy (bilateral), and the fog is everywhere (diffuse). This is the 'ground-glass' appearance. If you see a X-ray that looks like someone breathed on both sides of the glass — that is ARDS. Non-cardiogenic means the heart is NOT the reason for the flood.

Anchor Type

visual_association

Why It Works

The foggy windshield image is visually memorable and maps perfectly to the 'ground-glass' radiological descriptor. Manila morning fog adds local cultural resonance.

Example Usage

Exam: 'CXR shows bilateral diffuse infiltrates in a patient with refractory hypoxaemia. What is the diagnosis?' → Foggy windshield → ARDS.

Recall Trigger

Foggy windshield on both sides → bilateral white-out → ARDS on CXR

Tags

  • management
  • priority
  • pharmacology
  • intervention

Topic

Pulmonary Embolism — Management

Concept

PE Priority Actions: Oxygen → Elevate HOB → Anticoagulation; Thrombolytics ONLY for massive PE with haemodynamic instability

Anchor Id

A19

Difficulty

hard

Memory Aid

For PE, remember 'OEA — Only Emergencies get Alteplase': O = Oxygen (first priority, always), E = Elevate HOB (ease breathing), A = Anticoagulation (heparin to prevent clot growth). Thrombolytics (alteplase) are for MASSIVE PE with shock/instability ONLY — hence 'Only Emergencies get Alteplase.' Regular PE = anticoagulation (heparin). Crashing PE = alteplase. This distinction is a classic NLE trap.

Anchor Type

mnemonic

Why It Works

OEA creates a clear sequence for priority actions. The embedded rule 'Only Emergencies get Alteplase' prevents the common exam error of giving thrombolytics routinely.

Example Usage

Exam: 'A PE patient has BP 80/50 mmHg. Which drug is indicated?' → OEA: 'Only Emergencies get Alteplase' → massive PE with instability → alteplase (thrombolytic).

Recall Trigger

OEA for PE → Oxygen, Elevate HOB, Anticoagulate; alteplase ONLY for massive PE

Tags

  • patient education
  • pharmacology
  • warfarin
  • anticoagulants

Topic

Pulmonary Embolism — Patient Teaching

Concept

Warfarin teaching: consistent Vitamin K intake (not avoid), monitor INR, many drug interactions, take at same time daily

Anchor Id

A20

Difficulty

medium

Memory Aid

Imagine a patient named Lola Warda (on WARfarin). Her nurse tells her: 'Lola, hindi kailangan nang tigilan ang kangkong at malunggay (Vitamin K vegetables) — kumain lang nang pare-pareho araw-araw!' (Don't stop eating kangkong and malunggay — just eat the same amount every day!) Consistency is KEY, not avoidance. Then Lola asks: 'Kelan ko iche-check ang INR ko?' Answer: Regularly — target 2.0–3.0. 'At maraming gamot ang makaka-affect sa akin,' the nurse warns. Lola leaves with soft toothbrush and electric razor in her bag to prevent bleeding.

Anchor Type

micro_story

Why It Works

The familiar Filipino vegetables (kangkong, malunggay) are rich in Vitamin K, making this clinically accurate AND culturally specific. The local language adds emotional warmth and encoding depth.

Example Usage

Exam: 'A patient on warfarin asks if she should avoid vegetables. The correct response is?' → Lola Warda → NOT avoid, eat consistently. Monitor INR. Report unusual bleeding.

Recall Trigger

Lola Warda + kangkong/malunggay → warfarin teaching: consistent Vit K, monitor INR

Revision Game

PEEP (Positive End-Expiratory Pressure)

Clue

I am the guard at the door who keeps the alveoli from slamming shut at the end of every breath. Too much of me, and I block the hallway. Who am I?

Memory Link

A8 — pebble under the door analogy

D-Dimer (normal D-dimer rules out PE; high D-dimer is non-specific)

Clue

I am the blood test that can ONLY say NO. If I am normal, the doctor can stop worrying. But if I am high, I mean nothing on my own. What am I?

Memory Link

A11 — 'D for DENY' security guard analogy

Pulmonary Embolism (PE) — DVT from surgery embolized to the lung

Clue

Pedro had knee surgery yesterday, and today he grabbed your hand and said 'Mamamatay na ako!' He was gasping, his heart was racing, and his left leg was swollen. What happened to Pedro?

Memory Link

A9 — Pedro's micro-story

Warfarin — consistent Vitamin K intake is key; do not avoid Vitamin K vegetables

Clue

I am a Filipino grandmother who eats kangkong and malunggay every day. My nurse says I should keep eating them — but always the same amount. Which medication am I taking?

Memory Link

A20 — Lola Warda micro-story

Sepsis

Clue

I am the most common trigger that starts the catastrophic flood inside the lungs of an ARDS patient. Name me.

Memory Link

A6 — ARDS with the big Bold S

1. Secretions/airway obstruction (suction), 2. Kinked tubing, 3. Patient biting the ETT (bronchospasm is also acceptable)

Clue

My ventilator high-pressure alarm is ringing. I check my patient and find her SpO2 is dropping. List 3 things I should check BEFORE disconnecting her from the ventilator.

Memory Link

A15 — garden hose analogy (HIGH = blocked)

Prone positioning — redistributes perfusion to better-ventilated anterior lung regions, improving V/Q matching and oxygenation

Clue

In ARDS, you flip a patient face-down to improve oxygenation. What is this intervention called, and why does it work?

Memory Link

A7 — PLP hotcake/pancake flip

Virchow's Triad — Stasis (S), Hypercoagulability (H), Endothelial injury (E) = SHE clots

Clue

I am SHE. I cause clots. My three parts are a state of slow blood, overly sticky blood, and injured vessel walls. Who am I?

Memory Link

A10 — SHE clots mnemonic

Formula Mnemonics

Formula

Type I RF: PaO2 <60 mmHg (on room air)

Mnemonic

1-6-0: Type ONE, PaO2 below SIX-O. 'One is below sixty — oxygen is empty.'

When To Use

When classifying respiratory failure type from ABG results, or when a question gives you PaO2 values and asks for classification.

What Each Part Means

Type I = hypoxaemic failure; PaO2 = partial pressure of arterial oxygen; <60 mmHg = the threshold below which oxygen delivery to tissues becomes critically compromised

Formula

Type II RF: PaCO2 >50 mmHg AND pH <7.35

Mnemonic

2-5-0-7: Type TWO, CO2 above FIFTY, pH below SEVEN-point-THREE-FIVE. 'Two problems — too much CO2 and too little pH.'

When To Use

When interpreting ABG in COPD exacerbation, drug overdose, neuromuscular disease, or any condition impairing ventilation.

What Each Part Means

Type II = hypercapnic/ventilatory failure; PaCO2 = partial pressure of arterial CO2; >50 mmHg = CO2 retention above normal; pH <7.35 = respiratory acidosis confirming ventilatory failure

Formula

ARDS Low Tidal Volume: ~6 mL/kg of predicted body weight

Mnemonic

'SIX is the trick — six mL per kg keeps the lungs from getting sick.' A tidal volume of 6 mL/kg PBW is lung-protective. Higher volumes = volutrauma = more ARDS damage.

When To Use

Any question about mechanical ventilation settings in ARDS, or when asked about lung-protective ventilation strategy.

What Each Part Means

6 mL/kg = target tidal volume; PBW = predicted body weight (based on height and sex, not actual weight — important distinction); using PBW prevents under- or over-ventilation

Formula

Warfarin INR Target: 2.0–3.0 for PE/DVT

Mnemonic

'2 to 3 for PE/DVT — two to three is the therapeutic key.' Below 2 = under-anticoagulated (risk of clot). Above 3 = over-anticoagulated (risk of bleed). 2–3 is the sweet spot.

When To Use

Any question about warfarin monitoring, dosing adjustments, or patient teaching for PE/DVT anticoagulation.

What Each Part Means

INR (International Normalized Ratio) = standardized measure of warfarin's anticoagulation effect; 2.0–3.0 = therapeutic range for PE and DVT treatment; <1.5 = inadequate; >3.0 = supratherapeutic, bleeding risk increases

Formula

Heparin aPTT Target: 1.5–2.5x the control (normal) value

Mnemonic

'Heparin: one-and-a-half to two-and-a-half — that's the therapeutic math.' If normal aPTT is 30 seconds, target is 45–75 seconds. Think: 'Heparin doubles the waiting time, roughly.'

When To Use

Questions about heparin monitoring, dosing, or comparing heparin vs. warfarin monitoring parameters.

What Each Part Means

aPTT = activated partial thromboplastin time; monitors intrinsic clotting pathway affected by heparin; 1.5–2.5x control = therapeutic anticoagulation; too low = subtherapeutic (clot risk); too high = supratherapeutic (bleed risk)

Formula

Controlled O2 Target in Type II RF (COPD): SpO2 88–92%

Mnemonic

'COPD: 88 to 92 — not 98 or 99, that will make them blue (apnoeic).' The number 88 looks like two lungs barely inflating. The number 92 is the ceiling. Higher = lose hypoxic drive → hypoventilation.

When To Use

Any question about oxygen administration in COPD, Type II respiratory failure, or CO2 retainers.

What Each Part Means

SpO2 88–92% = sufficient to prevent tissue hypoxia without abolishing the hypoxic ventilatory drive that COPD patients rely on; aiming for 98–100% in Type II RF risks CO2 narcosis and apnoea

Quick Recall Chains

Chain Title

Steps: Responding to a Ventilator HIGH-Pressure Alarm

Recall Test

Without looking: Name 4 causes of a HIGH-pressure alarm and the final action if unresolved.

Memory Chain

Pedro the nurse NEVER silences an alarm blindly. He ASSESSES his patient first — is the patient blue? Then he thinks of the HOSE: is it CLOGGED? (suction), KINKED? (straighten), BITTEN? (bite block), SQUEEZED? (bronchospasm). If nothing works in seconds, Pedro GRABS THE BAG (BVM) and shouts for help. 'Never silence, always act — grab the bag when in doubt.'

Items To Remember

  • Do NOT silence without checking
  • Assess patient first (LOC, SpO2, chest rise)
  • Check for secretions → suction if needed
  • Check for kinked or occluded tubing
  • Check if patient is biting the tube (bite block)
  • Assess for bronchospasm
  • If unresolved → disconnect and manually ventilate with BVM
  • Call for help / notify physician

Chain Title

ARDS Pathophysiology Chain: Trigger → Damage → Flood → Stiff Lungs → Refractory Hypoxaemia

Recall Test

Name the 8 steps from ARDS trigger to refractory hypoxaemia in order.

Memory Chain

Imagine a TYPHOON (trigger) hitting a SEAWALL (alveolar-capillary membrane). The wall CRACKS (damage), saltwater FLOODS (protein-rich oedema) the village (alveoli). The natural SOAP keeping the ground dry (surfactant) is washed away. The ground COLLAPSES (atelectasis), becomes hard and muddy (stiff lungs). Roads are blocked (V/Q mismatch and shunt). No air (oxygen) gets through — REFRACTORY HYPOXAEMIA. The typhoon-to-flood chain IS the ARDS chain.

Items To Remember

  • Trigger (sepsis, aspiration, trauma)
  • Damage to alveolar-capillary membrane
  • Protein-rich fluid floods alveoli (non-cardiogenic pulmonary oedema)
  • Surfactant is lost
  • Alveolar collapse (atelectasis)
  • Lung compliance falls (stiff lungs)
  • V/Q mismatch and intrapulmonary shunting
  • Refractory hypoxaemia

Chain Title

DVT/PE Prevention Interventions

Recall Test

Name 5 PE prevention interventions without looking. Which ones are mechanical vs. pharmacological?

Memory Chain

Remember 'EACHAP': Early ambulation, Ankle exercises, Compression stockings, Hydration, Anticoagulation Prophylaxis. Think: 'EACHAP of prevention is worth a pound of cure.' Visualize a post-op patient EACH morning being helped out of bed (early ambulation), doing ankle circles (exercises), wearing white stockings (compression), drinking water (hydration), and receiving an enoxaparin injection (prophylaxis). EACHAP every day.

Items To Remember

  • Early ambulation
  • Ankle (leg) exercises
  • Compression stockings (elastic/graded)
  • Intermittent pneumatic compression devices
  • Adequate hydration
  • Prophylactic anticoagulation (heparin/enoxaparin for high-risk patients)

Chain Title

Anticoagulants for PE: Drug → Route → Monitor → Antidote

Recall Test

For each anticoagulant: What is its route? What do you monitor? What is the antidote?

Memory Chain

Think of four bodyguards fighting clots: HEPA (heparin — the IV fast-acting guard, monitored by aPTT, neutralized by Protamine, but sometimes goes rogue with HIT). ENOX (enoxaparin — the SQ reliable guard, no routine monitoring, partially reversed by Protamine). WARDA (warfarin — the oral slow guard, monitored by INR, reversed by Vitamin K, hates vegetables/drugs). DOAK (DOACs — the new oral guards, no monitoring, dabigatran reversed by idarucizumab). Four guards, four profiles.

Items To Remember

  • Heparin → IV → aPTT (1.5–2.5x) → Protamine sulfate → Watch for HIT (check platelets)
  • Enoxaparin (LMWH) → Subcutaneous → Usually no routine monitoring → Protamine (partial)
  • Warfarin → Oral → PT/INR (2.0–3.0) → Vitamin K → Many drug/food interactions
  • DOACs (rivaroxaban, apixaban, dabigatran) → Oral → No routine monitoring → Idarucizumab (dabigatran)

Chain Title

VAP Bundle: HEAD-S Components

Recall Test

List all 5 components of the VAP prevention bundle from memory using HEAD-S.

Memory Chain

The patient is wearing a HEAD-S (headset/headphones). The headset pushes the HEAD UP (HOB 30–45°). The music keeps them awake (daily sedation interruption). They hum while brushing teeth (antiseptic oral care). The cord wraps around their legs (DVT prophylaxis, like stockings). The battery pack presses on the stomach (stress ulcer prophylaxis, like a protective PPI). HEAD-S = the 5-piece VAP prevention set.

Items To Remember

  • HOB elevation 30–45 degrees
  • Every day sedation vacation (daily interruption + wean assessment)
  • Antiseptic oral care (chlorhexidine)
  • DVT prophylaxis
  • Stress ulcer prophylaxis
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