14.1 COPD, Airway Clearance and Pulmonary Rehabilitation

Quick Answer: Assess breathlessness + sputum + function + safety (not spirometry diagnosis). Match ACT to secretion load and capacity; use huff/ACBT-style control rather than endless hard coughing. Deliver pulmonary rehab as supervised exercise + education/self-management. New rest dyspnoea, sputum change, confusion, desaturation, or systemic unwellness → medical escalation, not more intensive ACT.

Chronic obstructive pulmonary disease (COPD) is a cornerstone cardiorespiratory topic for the APC Written Assessment. You are not expected to diagnose COPD from spirometry alone, titrate systemic corticosteroids, or invent oxygen prescriptions. You are expected to assess breathlessness and functional impact, select and teach appropriate airway clearance and breathing strategies, contribute to pulmonary rehabilitation (PR), monitor safety during activity, and recognise exacerbations that require medical escalation across Australian public, private, community, and rural settings.

COPD Working Map for Physiotherapists

COPD is a progressive airflow-limitation syndrome usually linked to long-term noxious exposures (commonly tobacco smoke, biomass, occupational dusts/fumes). Clinical phenotypes often mixed in real patients include chronic bronchitis (chronic productive cough) and emphysema (alveolar destruction, gas trapping, reduced elastic recoil). Bronchiectasis may coexist or present separately as permanent airway dilatation with recurrent infection and large sputum loads—ACT reasoning often resembles “high secretion” COPD rather than pure emphysema. Asthma–COPD overlap appears in some stems; treat variable obstruction themes with asthma safety principles (section 14.2) while still using COPD exercise and sputum logic when relevant.

Typical physiotherapy-relevant features include dyspnoea on exertion, reduced exercise tolerance, chronic cough and sputum (especially bronchitis/bronchiectasis phenotypes), hyperinflation and inefficient breathing patterns, peripheral muscle deconditioning, anxiety around breathlessness, malnutrition or obesity, cor pulmonale risk in advanced disease (link to cardiac chapter right-heart themes), and frequent hospital or community exacerbations.

Assessment of Breathlessness and Function

Breathlessness is multidimensional. In cases, integrate:

• Subjective severity: Medical Research Council (mMRC) dyspnoea scale style questions (breathless only on strenuous activity vs stops for breath after ~100 m vs too breathless to leave the house).
• Triggers and pattern: walking, hills, ADLs, cold air, speech, anxiety; orthopnoea or paroxysmal nocturnal dyspnoea may point toward cardiac overlap—do not assume all dyspnoea is pure COPD.
• Objective response: respiratory rate, accessory muscle use, SpO2 at rest and on exertion (if monitored), heart rate, blood pressure when indicated, and perceived exertion (RPE/Borg/CR-10 style scales).
• Sputum profile: volume, colour/tenacity, ease of expectoration, daily vs intermittent, recent change from baseline.
• Functional capacity: walking distance in clinic corridors or field tests when ordered/available, sit-to-stand, ability to climb a flight of stairs, and activity of daily living limits.
• Comorbidities and safety: heart failure, IHD, anxiety/depression, osteoporosis (steroid history), frailty, cognitive impairment, home oxygen, and recent hospitalisation.

Document baseline and response to intervention. APC cases often hinge on whether you prioritise safety and medical liaison versus continuing an ACT session when the person is medically unstable. A person who “walked yesterday” can still be deteriorating today—reassess, do not autopilot the last plan.

Airway Clearance Technique Selection Principles

Airway clearance is indicated when retained secretions contribute to symptoms, infection risk, or gas exchange impairment—and the person can safely participate. Technique choice is principle-based, not “one technique for all COPD.”

Core selection principles

1. Match to secretion load. High daily sputum (bronchiectasis, some chronic bronchitis) often needs regular, efficient ACTs. Pure emphysema with little sputum may prioritise dyspnoea strategies and exercise over complex ACT routines.
2. Match to patient capacity. Fatigue, dyspnoea, weak cough, cognitive impairment, and poor coordination limit techniques that demand sustained control or equipment setup.
3. Prefer active, teachable methods when the person can learn self-management (active cycle of breathing techniques—ACBT; autogenic drainage principles; huff/forced expiratory technique). Manual techniques and positioning may assist when cough is weak or the person is acutely limited, but independence is a long-term goal.
4. Consider airflow obstruction and dynamic hyperinflation. Forced prolonged coughing can worsen air trapping and distress; controlled expiration and huffing are often better tolerated than repeated hard coughs.
5. Infection control and environment. Open suction and aerosol-generating procedures require appropriate precautions in healthcare settings. Home programs need realistic equipment access and cleaning.
6. Integrate, do not replace, medical care. Antibiotics, bronchodilators, and hydration status affect sputum; physiotherapy cannot substitute for treating infection or hypoxaemic respiratory failure.

Technique families (exam-level)

Huff (forced expiratory technique) moves secretions toward larger airways with an open glottis and controlled force—“fogging a mirror”—then expectoration follows if needed. Teaching quality of huff (too soft vs too forced) is a common competency point.

Breathing control / pursed-lip breathing reduces respiratory rate, may improve tidal volume efficiency, and can blunt dynamic hyperinflation symptoms during exertion. Forward-lean sitting or standing with arm support is a classic dyspnoea-relief posture. Energy conservation (sit for tasks, pace ADLs, plan rest) supports people who desaturate or tire with continuous effort.

Pulmonary Rehabilitation Components

Pulmonary rehabilitation is a comprehensive intervention for people with chronic respiratory disease who are symptomatic and functionally limited. Evidence-aligned PR typically includes:

• Supervised aerobic exercise (walking, cycling, treadmill) progressed by time, speed, incline, or interval structure based on symptoms and SpO2 response within medical parameters.
• Resistance / strength training for upper and lower limbs—peripheral muscle weakness is a major limit to function in COPD.
• Flexibility and posture work as needed.
• Education and self-management: medication inhaler technique awareness (within scope—do not independently change prescribed regimens), early exacerbation action plans coordinated with medical teams, breathing strategies, energy conservation, nutrition referrals, smoking cessation support pathways, and anxiety–breathlessness links.
• Psychosocial support and peer environment that reduces isolation.
• Outcome measurement (symptoms, exercise capacity field tests where used, quality of life tools, goal attainment) and transition to community maintenance activity.

PR is not “just a walking group.” On APC cases, the best answer often combines exercise training + education/self-management + safety monitoring, not massage-only or passive ACT alone when deconditioning is the main problem.

Who benefits and who needs medical clearance thinking

Most stable symptomatic COPD patients are PR candidates. Relative cautions or need for medical input include uncontrolled cardiovascular disease, severe hypoxaemia or hypercapnia with instability, acute infection/exacerbation, severe pulmonary hypertension with syncope risk, and inability to participate safely. Entry-level practice respects local referral pathways and medical fitness rather than forcing high-intensity exercise in unstable patients.

Australian PR services may sit in hospitals, community health, or hybrid/telehealth models. Rural and remote candidates still deserve exercise and education plans with realistic equipment and follow-up—not “no PR available so do nothing.” Collaborate with exercise physiologists, nursing, and GPs rather than guarding turf.

Exacerbation Recognition and Medical Escalation

A COPD exacerbation is an acute worsening of respiratory symptoms beyond day-to-day variation, often triggered by infection or environmental insult. Physiotherapy continues only when medically appropriate; many acute features need medical assessment first.

Escalate / seek medical review urgently when you observe or the patient reports clusters such as:

• Marked increase in dyspnoea at rest or with minimal activity compared with baseline
• Sputum purulence, large volume increase, or haemoptysis (new or significant)
• Fever, rigors, or systemic unwellness suggesting infection
• New or worsening confusion, drowsiness, or inability to complete sentences
• Resting or exertional SpO2 drop below the patient’s known target range (do not invent a universal cut-off for every patient; use documented targets and clinical context)
• Chest pain concerning for ACS or PE, syncope, or new arrhythmia symptoms
• Inability to maintain oral intake, severe fatigue, or carer concern of rapid decline
• Failure of the agreed action plan (e.g. already used rescue strategies and still deteriorating)

During suspected exacerbation, do not push intensive exercise or aggressive ACTs that increase work of breathing without medical stabilisation. Support comfort positioning, breathing control, and safe mobility for essential function only if appropriate, and hand over clearly to medical/nursing colleagues. In community and private practice, the pathway is often urgent GP review, hospital ED, or 000, depending on severity—not “finish the session and hope.”

Australian practice context cues

• Work within team-based chronic disease models (GP, respiratory physician, nurse, exercise physiologist, pharmacy, pulmonary rehab services).
• Respect home oxygen as a prescribed therapy: do not increase or decrease flow rates without medical orders (covered further in section 14.3).
• Use culturally safe communication about smoking cessation, activity goals, and family involvement—especially when literacy or language barriers affect inhaler and action-plan education. Avoid shaming; support change pathways.
• Document sputum changes, SpO2 trends if measured, exercise response, education provided, and escalation steps.
• After hospital discharge for exacerbation, prioritise early PR referral and staged return to activity—not indefinite bed rest.

APC Case Patterns and Competency Links

Expect vignettes that mix:

• Stable community COPD needing PR referral reasoning and ACT teaching
• High-sputum bronchiectasis/COPD overlap needing ACT prioritisation
• Breathless patient who needs dyspnoea strategies plus graded exercise, not bed rest
• Deteriorating patient where the correct answer is medical escalation rather than another ACT cycle
• Osteoporotic older adult where heavy manual techniques are risky
• Beta-blocked comorbid IHD patient where RPE + symptoms trump pure HR targets during PR

Competencies align with assessment and planning, shared decision-making about realistic goals, safety/risk management, and interprofessional collaboration. Knowing when not to treat is as much a Threshold competency as teaching ACBT.

Closing Exam Anchor

For COPD on APC: assess breathlessness and sputum in functional context → choose ACTs by principle → deliver PR as exercise-plus-education → watch for exacerbation red flags and escalate. Technique names matter less than matching the intervention to the problem and knowing when physiotherapy alone is not enough.