Wednesday, 29 April 2026

Chapter 24 | Module 23: Bunions (Hallux Valgus)

 


Definition:
A bunion is a bony deformity at the base of the big toe where the toe gradually shifts inward toward the others.

Causes:

  • Genetic foot structure
  • Tight or narrow footwear
  • Arthritis (especially inflammatory types)

Symptoms:

  • Pain and swelling at big toe joint
  • Visible bump on side of foot
  • Difficulty wearing shoes

Management:

  • Wider footwear and padding
  • Orthotics for alignment
  • Pain relief (NSAIDs)
  • Surgery (bunionectomy) in severe cases

Chapter 25 | Module 24: Cancer

Definition:
Cancer is uncontrolled abnormal cell growth that can invade tissues and spread (metastasis).

Key Pathophysiology:

  • DNA mutations → uncontrolled cell division
  • Tumour formation
  • Potential spread via blood/lymph

Types (examples):

  • Carcinomas (epithelial)
  • Sarcomas (bone/muscle)
  • Leukemia (blood cancers)

Treatment Approaches:

  • Surgery (remove tumour)
  • Chemotherapy (systemic cell kill)
  • Radiotherapy (targeted destruction)
  • Immunotherapy
  • Adjuvant / neoadjuvant therapy

Prevention & Screening:

  • Smoking cessation
  • Screening programmes (e.g., colonoscopy, mammograms)

Chapter 26 | Module 25: Cardiac Arrest

Definition:
Sudden loss of heart function, leading to collapse and no pulse.

Common Causes:

  • Ventricular fibrillation
  • Ventricular tachycardia
  • Myocardial infarction
  • Severe hypoxia

Signs:

  • Unresponsive
  • No breathing or pulse

Emergency Management:

  • Immediate CPR
  • Defibrillation (shockable rhythms)
  • Advanced life support (airway, drugs like adrenaline)

Post-Arrest Care:

  • Therapeutic cooling (targeted temperature management)
  • Oxygen and blood pressure support
  • Neurological monitoring

Chapter 27 | Module 26: Cardiovascular Disorders

Major Conditions:

  • Coronary Artery Disease (CAD)
  • Heart Failure
  • Hypertension
  • Congenital heart defects

Coronary Artery Disease:

  • Atherosclerosis narrows arteries
  • Reduced oxygen to heart muscle → angina or MI

Heart Failure:

  • Heart cannot pump effectively
  • Symptoms: breathlessness, oedema, fatigue

Management:

  • Diuretics
  • ACE inhibitors / beta blockers
  • Low salt diet
  • Lifestyle changes

Chapter 28 | Module 27: Carpal Tunnel Syndrome

Definition:
Compression of the median nerve in the wrist.

Causes:

  • Repetitive strain
  • Pregnancy
  • Arthritis
  • Wrist injury

Symptoms:

  • Numbness/tingling in thumb, index, middle fingers
  • Weak grip strength
  • Night pain

Treatment:

  • Wrist splints
  • NSAIDs
  • Steroid injections
  • Surgery (carpal tunnel release)

Chapter 29 | Module 28: Catarrh

Definition:
Excess mucus in the nose, throat, or sinuses due to inflammation.

Causes:

  • Colds
  • Sinus infections
  • Allergies

Symptoms:

  • Blocked nose
  • Post-nasal drip
  • Throat irritation

Management:

  • Hydration
  • Steam inhalation
  • Saline sprays
  • Decongestants or antihistamines

Chapter 30 | Module 29: Cellulitis

Definition:
A bacterial skin infection affecting deep skin layers.

Causes:

  • Streptococcus or Staphylococcus bacteria
  • Entry through cuts, wounds, ulcers

Symptoms:

  • Red, hot, swollen skin
  • Pain and tenderness
  • Fever in severe cases

Treatment:

  • Oral or IV antibiotics
  • Elevation of affected limb
  • Wound care

Chapter 31 | Module 30: Cerebral Palsy (CP)

Definition:
A group of lifelong movement disorders caused by early brain injury.

Causes:

  • Oxygen deprivation at birth
  • Prematurity
  • Infection during pregnancy
  • Brain injury in infancy

Types:

  • Spastic (most common)
  • Dyskinetic
  • Ataxic

Symptoms:

  • Muscle stiffness or floppiness
  • Poor coordination
  • Speech difficulties
  • Developmental delay

Management:

  • Physiotherapy
  • Occupational therapy
  • Speech therapy
  • Muscle relaxants (e.g., baclofen)
  • Mobility aids

Chapter 22 / Module 21 – Binge Eating Disorder (BED) & Chapter 23 / Module 22 – Bulimia Nervosa (Combined Module)

 

Overview: Eating Disorders

This module covers two related eating disorders:

  • Binge Eating Disorder (BED)
  • Bulimia Nervosa (BN)

Both involve episodes of binge eating, but they differ in behaviour, body response, and psychological patterns.


Section 1 – Binge Eating Disorder (BED)

What is Binge Eating Disorder?

Binge Eating Disorder involves:

  • Eating large amounts of food in a short time
  • Feeling loss of control during eating

Afterwards, the person often feels:

  • Shame
  • Guilt
  • Distress

Key Features

  • Eating very quickly
  • Eating when not physically hungry
  • Eating until uncomfortably full
  • Eating alone due to embarrassment
  • Feeling unable to stop during episodes

Important Distinction

Unlike bulimia:

  • There is no regular purging behaviour
  • No vomiting, laxatives, or excessive exercise as compensation

Emotional Impact

  • Strong guilt after binge episodes
  • Low self-esteem
  • Possible depression or anxiety

Physical Effects

BED is often linked to:

  • Weight gain or obesity
  • Type 2 diabetes risk
  • Heart and cardiovascular problems

Treatment

  • Cognitive Behavioural Therapy (CBT)
  • Nutritional support and education
  • Support groups
  • Behavioural strategies to regulate eating

Core Idea

BED =
๐Ÿ‘‰ Binge eating without compensating behaviours


Section 2 – Bulimia Nervosa (BN)

What is Bulimia Nervosa?

Bulimia involves a cycle of:

  • Binge eating
  • Followed by compensatory behaviours

This is often called the binge–purge cycle.


Key Features

Binge Episode

  • Rapid eating of large amounts of food
  • Feeling out of control

Compensatory Behaviours

  • Self-induced vomiting
  • Laxative or diuretic misuse
  • Fasting
  • Excessive exercise

Physical Signs

  • Swollen salivary glands (“chipmunk cheeks”)
  • Tooth enamel erosion
  • Calluses on knuckles (Russell’s sign)
  • Electrolyte imbalance (can be dangerous)

Weight Pattern

  • Often normal weight or slightly overweight
  • Can be difficult to detect externally

Emotional Impact

  • Fear of weight gain
  • Shame after binge episodes
  • Anxiety around eating

Treatment

  • Cognitive Behavioural Therapy (CBT)
  • SSRIs (antidepressants)
  • Nutritional rehabilitation
  • Breaking the binge–purge cycle

Core Idea

Bulimia =
๐Ÿ‘‰ Binge eating followed by compensation (purging behaviours)


Section 3 – Key Differences (BED vs Bulimia)

FeatureBinge Eating Disorder (BED)Bulimia Nervosa (BN)
Binge eatingYesYes
Purging behavioursNoYes
WeightOften higher weightUsually normal/slightly overweight
Main emotionShame & guiltFear of weight gain
CycleBinge onlyBinge–purge cycle

Section 4 – Shared Features

Both disorders may include:

  • Loss of control during eating
  • Emotional distress
  • Shame after episodes
  • Risk of depression or anxiety

Key Takeaway

  • BED = binge eating without compensation
  • Bulimia = binge eating with compensatory behaviours

Both are serious eating disorders that can affect:

  • Physical health
  • Emotional wellbeing
  • Daily functioning 

Chapter 20 / Module 19 – Bipolar Disorder & Chapter 21 / Module 20 – Borderline Personality Disorder (Combined Module)

 

Overview: Two Different Mental Health Conditions

This module compares:

  • Bipolar Disorder (Mood Disorder)
  • Borderline Personality Disorder (BPD) (Personality Disorder)

They can look similar on the surface, but they are different conditions with different causes and treatments.


Section 1 – Bipolar Disorder (Mood Disorder)

What is Bipolar Disorder?

Bipolar disorder is a brain-based mood condition that causes episodes of:

  • High mood (mania or hypomania)
  • Low mood (depression)

These episodes happen in cycles, with periods of stable mood in between.


Main Features

Mania / Hypomania (High Phase)

  • Very high energy
  • Less need for sleep
  • Fast thoughts and speech
  • Risk-taking behaviour
  • Overconfidence or grand ideas

Depression (Low Phase)

  • Low mood
  • Fatigue
  • Loss of motivation
  • Hopelessness
  • Reduced concentration

Key Pattern

  • Episodes last weeks to months
  • Mood changes are often not directly triggered by events
  • There are often stable periods between episodes (euthymic states)

Causes

  • Strong genetic link
  • Brain chemistry differences
  • Neurobiological factors

Treatment

  • Medication is essential
    • Mood stabilisers (e.g., lithium)
    • Anticonvulsants
    • Antipsychotics (for mania)
  • Psychological therapy:
    • CBT
    • Family-focused therapy

Core Idea

Bipolar disorder is a “state-based” condition
๐Ÿ‘‰ A person behaves differently during episodes, but returns to baseline between them.


Section 2 – Borderline Personality Disorder (BPD)

What is BPD?

BPD is a personality disorder involving long-term patterns of:

  • Emotional instability
  • Relationship difficulties
  • Impulsive behaviour
  • Unstable self-image

Main Features

  • Intense emotions that change quickly
  • Fear of abandonment
  • Unstable relationships
  • Impulsive actions (e.g., spending, self-harm risks)
  • Chronic feelings of emptiness
  • Intense anger

A key concept is:

  • “Splitting” → seeing people as all good or all bad

Mood Pattern

  • Emotional shifts happen quickly (hours to days)
  • Often triggered by:
    • Relationship conflict
    • Fear of rejection
    • Stressful interactions

Causes

  • Often linked to:
    • Childhood trauma
    • Neglect or abuse
    • Early attachment disruption

Treatment

  • Psychotherapy is the main treatment
    • Dialectical Behaviour Therapy (DBT)
    • CBT-based approaches
  • Medication may help symptoms but is not the main treatment

Core Idea

BPD is a “trait-based” condition
๐Ÿ‘‰ It is a long-term pattern of emotional and relational functioning.


Section 3 – Key Differences (Important Comparison)

FeatureBipolar DisorderBorderline Personality Disorder
TypeMood disorderPersonality disorder
Mood change durationWeeks to monthsHours to days
TriggerOften not event-drivenOften triggered by relationships
Core issueMood episodesEmotional regulation & relationships
Self-imageMostly stableUnstable
Treatment focusMedication + therapyTherapy (especially DBT)

Section 4 – Important Clinical Understanding

Bipolar Disorder

  • Episodic condition
  • Brain chemistry strongly involved
  • Cycles of highs and lows

BPD

  • Persistent personality pattern
  • Strong emotional sensitivity
  • Relationship-driven distress

Section 5 – Can They Occur Together?

Yes.

Research suggests:

  • Some people can have both Bipolar Disorder and BPD
  • This can make diagnosis more complex

Key Takeaway

  • Bipolar Disorder = mood episodes (state changes)
  • Borderline Personality Disorder = long-term emotional and behavioural patterns

They may look similar, but they are different conditions with different treatments and support needs.

Chapter 20 / Module 19 – bipolar disorder

 

What is Bipolar Disorder?

Bipolar disorder is a long-term mood condition that causes extreme changes in:

  • Mood
  • Energy
  • Thinking
  • Behaviour
  • Daily functioning

People experience cycles between:

  • High moods (mania or hypomania)
  • Low moods (depression)

These changes can significantly affect daily life and relationships.


Main Mood Phases

Mania (High Phase)

Mania is a period of very elevated mood and energy.

Signs include:

  • Very high energy
  • Reduced need for sleep
  • Racing thoughts
  • Talking very quickly
  • Impulsive or risky behaviour (spending, decisions)
  • Inflated self-confidence or grand ideas

Depression (Low Phase)

Depression is a period of low mood and reduced functioning.

Signs include:

  • Low mood or sadness
  • Fatigue and low energy
  • Loss of interest in activities
  • Poor concentration
  • Feelings of worthlessness
  • Sleep changes

Types of Bipolar Disorder

Bipolar I

  • At least one full manic episode
  • May include depression, but not required for diagnosis
  • Mania can require hospital care

Bipolar II

  • Hypomania (less severe mania)
  • Major depressive episodes
  • No full manic episodes

Cyclothymia

  • Long-term mood fluctuations
  • Milder highs and lows
  • Lasts at least 2 years

Impact on Daily Life

Bipolar disorder can affect:

  • Work and education
  • Relationships
  • Financial decisions
  • Sleep patterns
  • Personal safety

During mania, people may take risks they would not normally take.


Nursing Care and Support

Safety First

  • Prevent self-harm or risky behaviour
  • May require inpatient care during severe episodes

Environment

  • Keep surroundings calm and low-stimulation
  • Reduce noise and distractions

Communication

  • Use clear, simple language
  • Stay calm and consistent
  • Set firm boundaries

Nutrition & Self-Care

  • Encourage high-calorie, high-protein finger foods
  • Monitor sleep and hydration

Treatment Approaches

Medication

  • Lithium – first-line mood stabiliser
  • Anticonvulsants (e.g., valproate)
  • Antipsychotics (for acute mania)

Psychological Therapies

  • Cognitive Behavioural Therapy (CBT)
  • Family-focused therapy
  • Psychoeducation

Important Medication Safety

Lithium monitoring

Watch for signs of toxicity:

  • Tremors
  • Vomiting or diarrhoea
  • Confusion
  • Unsteady movement

Maintain:

  • Regular blood tests
  • Consistent salt and fluid intake

Managing Acute Mania (Key Interventions)

  • Reduce stimulation (quiet environment)
  • Set clear boundaries
  • Encourage rest and nutrition
  • Ensure safety (remove hazards)
  • Administer prescribed medication

Key Takeaway

Bipolar disorder is not just “mood swings”.

It is a serious medical condition involving:

  • Extreme mood highs and lows
  • Changes in thinking and behaviour
  • Long-term management needs

With treatment and support, many people manage symptoms and live stable lives.

Chapter 19 / Module 18 – Autism Spectrum Disorder (ASD) & Behavioural Learning

 

What is Autism Spectrum Disorder (ASD)?

Autism Spectrum Disorder is a neurodevelopmental condition that affects:

  • Social communication
  • Interaction with others
  • Behaviour and sensory processing

It is called a spectrum because it affects people in different ways and different levels of support are needed.

Key features include:

  • Difficulty with social communication
  • Challenges with non-verbal communication (facial expression, eye contact)
  • Differences in understanding social situations
  • Repetitive behaviours or routines
  • Sensory sensitivities

Some people may be non-speaking or use alternative communication methods.


Early Signs of Autism (12–24 months)

Early indicators may include:

  • Limited eye contact
  • Delayed speech or language development
  • Reduced response to name
  • Less interest in social interaction
  • Repetitive movements or play patterns

Early support can make a significant difference in development.


Core Areas Affected in Autism

1. Social Communication

  • Difficulty understanding tone of voice
  • Challenges with conversation back-and-forth
  • Difficulty understanding social rules

2. Behaviour

  • Repetitive movements or routines
  • Preference for sameness
  • Distress with change

3. Sensory Processing

  • Over- or under-sensitivity to:
    • Sound
    • Light
    • Touch
    • Smell

Key Autism-Related Terms

  • Echolalia – repeating words or phrases heard
  • Functional communication – expressing needs and feelings effectively
  • Theory of mind – understanding that others think and feel differently
  • Repetitive behaviours – repeated actions or routines for comfort or regulation

Applied Behaviour Analysis (ABA)

ABA is a structured therapy approach used to support people with autism.

It focuses on:

  • Teaching new skills
  • Reducing behaviours that cause difficulty
  • Reinforcing positive behaviours

ABA is often used in educational and clinical settings and may be covered through specialist programmes.


Generalisation and Maintenance (Learning Skills)

These are important parts of autism support and behavioural learning:

Generalisation

This means using a learned skill in different situations, such as:

  • With different people
  • In different places (home, school, community)
  • With different materials or tasks

Example:
A child learns to ask for water at home → then uses the same skill at school.

Maintenance

This means:

  • Keeping a skill over time
  • Not forgetting what has been learned

Both are essential for real-life independence.


Strategies to Support Learning

To help skills generalise and last:

  • Involve family and carers in learning
  • Practice skills in real-life environments
  • Repeat learning over time
  • Use consistent routines
  • Adapt environments when needed

TRICARE Autism Care Demonstration (ACD)

This programme supports eligible individuals with autism by funding services such as ABA therapy.

Key features:

  • Requires a formal ASD diagnosis
  • Uses structured assessments (e.g., ADOS-2, CARS-2)
  • Provides access to trained behaviour specialists
  • Assigns an Autism Services Navigator (care coordinator)

It is designed to support structured behavioural and developmental care.


Support Roles in Autism Care

  • Behaviour technicians (direct support)
  • Behaviour analysts (programme design and supervision)
  • Care coordinators / navigators
  • Family members and educators

Key Takeaway

Autism is not an illness.

It is a lifelong neurodevelopmental difference that affects:

  • Communication
  • Social interaction
  • Behaviour and sensory processing

With the right support:

  • Skills can be learned
  • Independence can increase
  • Quality of life can improve 

Chapter 18 / Module 17 – Autoimmune Diseases What are Autoimmune Diseases?

 


Autoimmune diseases happen when the immune system stops working normally.

Instead of protecting the body, it mistakes healthy cells as “danger” and attacks them.

This is called:

  • Loss of self vs non-self recognition
  • Breakdown of immune tolerance

The result is long-term (often lifelong) illness.


How Autoimmune Disease Happens (Simple Explanation)

The immune system normally protects the body.

In autoimmune disease:

  • The body loses tolerance
  • Immune cells attack healthy tissue
  • Damage builds up over time

Possible causes include:

  • Genetics (family link)
  • Hormones
  • Immune system errors
  • “Molecular mimicry” (body confuses self with germs)

Types of Autoimmune Disease

Autoimmune diseases can be:

1. Organ-specific

Affects one part of the body:

  • Thyroid disease
  • Addison’s disease
  • Celiac disease

2. Systemic

Affects many parts of the body:

  • Systemic Lupus Erythematosus (SLE)
  • Rheumatoid arthritis
  • Psoriasis (can affect skin and joints)

Common Autoimmune Conditions

  • Multiple Sclerosis (MS) – nerve damage (myelin destroyed)
  • Systemic Lupus Erythematosus (SLE) – body-wide inflammation
  • Graves’ disease – thyroid overactivity
  • Addison disease – adrenal gland damage
  • Celiac disease – reaction to gluten
  • Psoriasis – fast skin cell growth

Symptoms

Autoimmune diseases often develop slowly and can be hard to diagnose.

Common symptoms include:

  • Fatigue (very tired all the time)
  • Joint pain and swelling
  • Skin problems or rashes
  • Digestive problems
  • Recurring fever

Many people may have symptoms for years before diagnosis.


How Autoimmune Diseases Damage the Body

Damage can happen in different ways:

  • Immune cells attack organs directly
  • Antibodies attack healthy tissue
  • Inflammation builds over time
  • Tissue stops working properly

Example:

  • MS → immune system damages nerve insulation (myelin)
  • SLE → antibodies attack cell nuclei

Diagnosis

Diagnosis can be difficult and may take time.

Doctors may use:

  • Blood tests (immune markers, antibodies)
  • Symptom tracking over time
  • Imaging scans (for organ damage)
  • Specialist assessment

Treatment and Management

There is usually no cure, but treatment helps control symptoms.

Main approaches:

  • Immunosuppressant medication (calms immune system)
  • Steroids (reduce inflammation)
  • Long-term symptom management
  • Regular monitoring

Goal:

  • Reduce damage
  • Improve quality of life
  • Prevent flare-ups

Long-Term Impact

Autoimmune conditions are often:

  • Lifelong
  • Fluctuating (flare-ups and quiet periods)
  • Physically and emotionally exhausting

People with one autoimmune disease may:

  • Develop another condition
  • Have higher risk of heart disease

Key Takeaway

Autoimmune disease =
๐Ÿ‘‰ The immune system attacks the body by mistake

It affects:

  • Health
  • Energy levels
  • Daily life

But with support and treatment, many people manage well.

❤️ Chapter 17 Module 16 Atrial Fibrillation (AF) – Cardiac Arrhythmia Module

 


Atrial fibrillation (AF or AFib) is a common heart rhythm disorder where the atria (upper chambers of the heart) beat in a rapid, irregular, and uncoordinated way. Instead of contracting properly, they quiver (fibrillate).

It is strongly associated with:

  • Increased risk of stroke (4–5 times higher)
  • Increased risk of death (about 2 times higher)
  • Age-related cardiovascular disease

⚙️ Pathophysiology

In AFib:

  • Electrical signals in the atria become chaotic
  • Atria lose effective contraction
  • This leads to loss of the “atrial kick”

๐Ÿซ€ Atrial Kick Loss

Normally, atrial contraction adds 20–30% extra blood volume into the ventricles.
When this is lost:

  • Cardiac output decreases
  • Stroke volume decreases

⚠️ Cardiac Effects

  • Blood pools in the atria (stasis)
  • Risk of blood clot (thrombus) formation increases
  • Clots may travel to the brain → stroke risk

๐Ÿ”ฅ AF with RVR (Rapid Ventricular Response)

  • Heart rate >100 bpm (often >150 bpm)
  • Can cause dizziness, chest pain, or collapse

๐Ÿ“Š ECG Findings

  • Irregularly irregular rhythm
  • No clear P waves
  • Fibrillatory baseline activity
  • Variable QRS timing

๐Ÿงช Diagnosis

  • ECG (primary diagnostic tool)
  • Echocardiogram (heart structure check)
  • TEE (Transesophageal Echocardiogram):
    • Used to detect clots before cardioversion
  • Risk scoring system:
    • CHA₂DS₂-VASc score → estimates stroke risk

๐Ÿ’Š Management and Treatment

AFib treatment focuses on 3 main goals:

1. ๐Ÿง  Stroke Prevention

  • Anticoagulants:
    • Warfarin
    • NOACs (e.g. apixaban, rivaroxaban)

2. ❤️ Rate or Rhythm Control

Rate control:

  • Slows heart rate without fixing rhythm

Rhythm control:

  • Restores normal sinus rhythm

3. ⚡ Procedures

  • Cardioversion
    • Synchronized electrical shock (~150 joules)
  • Catheter ablation
    • Destroys abnormal electrical pathways

๐Ÿ“Œ Key Terms

  • Arrhythmia: Abnormal heart rhythm
  • Atrial kick: Final atrial contraction that fills ventricles
  • Thrombus: Blood clot formed inside a vessel or heart

⚠️ Complications

  • Stroke (most serious risk)
  • Heart failure (reduced output over time)
  • Chronic fatigue and reduced exercise tolerance
  • Embolic events (clots travelling through bloodstream)

๐Ÿ“Œ Key Summary

  • AFib is a chaotic atrial rhythm disorder
  • Leads to poor cardiac efficiency and blood pooling
  • Major complication = stroke risk from clot formation
  • Managed with:
    • Anticoagulation
    • Rate/rhythm control
    • Procedures like cardioversion or ablation

Chapter 24 | Module 23: Bunions (Hallux Valgus)

  Definition: A bunion is a bony deformity at the base of the big toe where the toe gradually shifts inward toward the others. Causes: ...