Acute · Prescribing pathway

How GPs Prescribe in a COPD Exacerbation

The primary care algorithm, read from a physiotherapist's chair. What the GP is doing, in what order, on what trigger — and the four points where a physiotherapist changes the outcome.

For health professionals
Antibiotics Microbiology & Medications · 12 of 18 Nebulised & Mucoactive Therapy
Authorship & review
Dr Sean James Ledger, BSc Physio (Hons) MSc PhD FHEA
Director and Principal Physiotherapist
Ahpra registration PHY0002298174
Version
1.2
Last updated
16 August 2026
Next review
16 August 2027
Every guide on this site is reviewed at least once a year, and sooner when the evidence changes.
How these guides are written and reviewed →
The short version

Home management of a COPD exacerbation runs in a fixed order: non-pharmacological strategies first and throughout, then more reliever, then — only if there is no improvement — a short course of prednisolone, antibiotics, or both. The two drugs have two different triggers: prednisolone for escalating breathlessness, antibiotics for signs of infection. They are not a pair. Knowing the order tells you where your session sits, and the escalation thresholds tell you when to stop treating and start phoning.1

The Lung Foundation Australia Improving COPD Exacerbation Algorithm is a one-page primary care guide to managing an exacerbation at home, designed to sit alongside the patient's own COPD Action Plan, and aligned with the COPD-X guidance that Australian primary care already works to.1,2 It is written for prescribers, which is precisely why it is worth a physiotherapist's time: it is the clearest available statement of what the GP is thinking when your patient rings them, and of where non-pharmacological care sits in that thinking.

The answer to the second question is more flattering than most physiotherapists expect. Non-pharmacological management is not a footnote at the end of the algorithm — it is step one, and the algorithm specifies its use at every step, including when the patient is well.1

What counts as an exacerbation

The definition is deliberately based on change rather than absolute severity: an acute change in the patient's baseline dyspnoea, cough and/or sputum that exceeds normal day-to-day variation.1 In the patient's own words, the algorithm lists the signs as:

Why this matters in your sessionTwo of those four you measure directly and the GP does not: exercise tolerance and reliever use during activity. A patient who has quietly dropped from four laps to two, or who now needs salbutamol before the warm-up, is exacerbating on the algorithm's own definition — often before they would think to ring anyone. You are frequently the first person in a position to notice.

The pathway, step by step

1

Non-pharmacological management — first, and continuing

The algorithm opens here and instructs that these strategies be used at every subsequent step, including when the patient is well.1 The named strategies are:

  • Breathing techniques
  • A breathlessness episode recovery plan
  • Postures and positions
  • Airway clearance
  • Handheld fan or cool air
  • Energy conservation

Every one of those six is core physiotherapy. This is the whole case for physiotherapy involvement in exacerbation management, stated by a prescribing guideline rather than by our own profession — and it is worth quoting to a referrer who is not sure what we would add.

2

Increase the reliever

Reliever is escalated and repeated as required, up to every 3–4 hours. The algorithm gives three options, and they are alternatives rather than a sequence:1

DrugDoseDevice
Salbutamol100 mcg, up to 8 actuations, one at a timepMDI with a spacer
Terbutaline500 mcg, 1–2 actuationsDry powder inhaler (DPI)
Ipratropium21 mcg, up to 4 actuations, one at a timepMDI with a spacer

One at a time and with a spacer are not incidental details. Eight actuations fired in quick succession into a spacer, or without one, do not deliver eight doses.

Why this matters in your sessionUp to eight actuations is a lot of technique to get wrong, at the exact moment the patient is most breathless and least able to coordinate. If you do only one check during an exacerbation, watch them take a reliever dose the way they actually take it at home — not a demonstration. See Getting Your Inhaler Technique Right and Puffer with a Spacer.
3

If not improving after about 2–3 days — consider a short course

This is the step most often misunderstood, because the two medicines answer two separate questions:1

MedicineTriggerCourse
PrednisoloneEscalating dyspnoea — worsening breathlessness that is significantly limiting usual daily activitiesOral, 30–50 mg daily for 5 days
AntibioticsSigns of infection — increased sputum volume and/or purulence, with or without feverOral amoxicillin or doxycycline for 5 days

A patient can legitimately receive one, the other, both or neither. Breathlessness without a sputum change does not call for an antibiotic; a purulent sputum change without escalating dyspnoea does not automatically call for prednisolone. Both courses are five days — longer courses and tapers are not part of this pathway.

Why this matters in your sessionKnowing the trigger lets you describe what you are seeing in the terms the GP will act on. “Sputum volume has doubled and turned green since Tuesday” and “can no longer manage the hallway without stopping twice” point at different prescriptions. Vague reports of “a bad week” point at neither. See Steroids and Antibiotics for what each course does to your session.
4

If still not improving after about 1–2 days — priority review

Failure to improve on the short course triggers a same-day or urgent GP appointment, not a longer course at home.1 If a patient tells you they finished the prednisolone days ago and feel no better, the algorithm's answer is a review today.

5

If improving — complete, step down, review

The improving path is not simply “stop”. It is: complete the treatment course, step the reliever back down, then attend a follow-up review at which the GP is directed to:1

  • Document the exacerbation in the clinical record
  • Review inhaler technique and adherence
  • Reinforce the COPD Action Plan
  • Consider suitability for a rescue pack
  • Consider stepping up maintenance therapy, or referring, if exacerbations are frequent or severe — for instance where they have led to hospitalisation or an emergency department presentation
Why this matters in your sessionTwo of those five are within a physiotherapist’s scope, and the last one is a referral trigger. A patient reporting their second or third exacerbation of the year is, on this algorithm, someone whose maintenance therapy should be reconsidered and who should be referred — and cardiorespiratory rehabilitation after an exacerbation is one of the few interventions that reduces the next one.3,4 A referral to a cardiorespiratory physiotherapist would be appropriate for regular review of breathing and inhaler techniques, sputum clearance and exercise.

Signs of emergency — the thresholds that end the session

The algorithm routes these straight to hospital, bypassing the steps above:1

Stop and escalate
  • Sudden, severe worsening breathlessness
  • Confusion, slurred speech or drowsiness
  • Cyanosis — blue or grey lips or fingers
  • SpO2 below 92%, or below the patient's own baseline
  • Any major concerning features
  • Not responding to outpatient treatment

Note the second one. Confusion, slurred speech and drowsiness in a patient with COPD may indicate hypercapnia, and a drowsy patient who seems to be settling is not settling. It is the sign most easily mistaken for improvement.

Why this matters in your sessionThree of these six are physiotherapy observations — SpO2, conscious state and colour — and physiotherapists routinely assess them in clinic. Below the patient's own baseline is the clause to hold on to: a patient who lives at 90% has not met the 92% threshold in any meaningful sense, and one who lives at 96% is in trouble at 88%. Record a baseline saturation while the patient is well, so the comparison exists when it is needed.

Rescue packs — and the four conditions

Prednisolone and antibiotics may be self-initiated where a rescue pack has been prescribed as part of a COPD Action Plan. The algorithm sets four criteria, and the patient must meet all of them:1

  1. Identify the signs of exacerbations and infections; and
  2. Understand when to initiate and complete a 5-day course of one or both medications; and
  3. Follow an individualised self-management plan agreed with their clinician; and
  4. Inform their healthcare professional when starting one or both medications — so the exacerbation is documented and a follow-up review is scheduled

Those four are an assessment, not a formality, and the first two are testable in a physiotherapy session in a way they often are not in a ten-minute consultation. A patient who cannot describe what would make them open the pack does not yet meet criterion one; a patient who took three days of prednisolone and stopped when they felt better does not meet criterion two.

Why this matters in your sessionCriterion four is the one that quietly fails, and it is the one that matters most to you: a self-initiated course that nobody was told about is an exacerbation missing from the record, and therefore an exacerbation that never counts toward “frequent or severe”. If a patient mentions they started their pack last week, ask whether they told the practice — and if not, encourage the call. See Understanding Your Rescue Pack and Your Plan for Managing Your Condition.

Where a physiotherapist changes the outcome

Four points, drawn from the algorithm rather than from advocacy:

Point in the pathwayWhat we contribute
Before it startsAll six named non-pharmacological strategies are physiotherapy, and the algorithm asks for them when the patient is well — a breathlessness recovery plan rehearsed in advance is worth more than one explained mid-episode.1
RecognitionFalling exercise tolerance and rising reliever use are exacerbation criteria we measure and the GP does not see between visits.1
DeliveryUp to eight actuations, one at a time, through a spacer, while acutely breathless. Technique review is explicitly on the follow-up list.1
Preventing the next oneFrequent or severe exacerbations trigger a therapy step-up or referral. Rehabilitation after an exacerbation reduces readmission and improves quality of life, and is most effective started early.3,4

What this page is not

It is a guide to reading a prescribing pathway, not to using one. Physiotherapists in Australia do not prescribe prednisolone or antibiotics, and nothing here changes that. The doses are reproduced so that you can recognise what your patient has been given and whether they are taking it as intended — a five-day course that stopped on day three is a clinically relevant finding you can act on by picking up the phone.

The algorithm itself carries two limits worth repeating: it presents a selective list of PBS-subsidised medicines aligned with COPD-X guidance, and it is a general guide rather than a substitute for individual medical advice.1,2

For Central Queensland practices: the two points most worth confirming at a routine review are whether the patient has a current written Action Plan and whether a baseline resting SpO2 is recorded somewhere the patient can find it. Both are what make the escalation thresholds usable at home, and both are quick to establish in a physiotherapy appointment. More for referrers →

Related reading

References & evidence base

  1. Lung Foundation Australia. Improving COPD Exacerbation Algorithm. FS0126V2. Brisbane: Lung Foundation Australia; 2026.
  2. Yang IA, George J, McDonald CF, et al. The COPD-X Plan: Australian and New Zealand guidelines for the management of chronic obstructive pulmonary disease. Version 2.78, October 2025 — a living guideline, revised quarterly. Brisbane: Lung Foundation Australia and Thoracic Society of Australia and New Zealand. Accessed 16 August 2026 at copdx.org.au
  3. Global Initiative for Chronic Obstructive Lung Disease. Global Strategy for the Diagnosis, Management and Prevention of COPD. GOLD; 2026.
  4. Puhan MA, Gimeno-Santos E, Cates CJ, Troosters T. Pulmonary rehabilitation following exacerbations of chronic obstructive pulmonary disease. Cochrane Database Syst Rev. 2016;(12):CD005305.

References are numbered in citation order (Vancouver/BMJ style) and were current at the time of writing. Guidelines are living documents — verify against the latest version before clinical use.

Important: This page explains a published primary care prescribing pathway so that non-prescribing clinicians can read it. It is not medical advice, does not authorise any clinician to prescribe, and does not replace the source document, current product information or individual medical assessment. Doses are reproduced from the source algorithm for recognition only.

Corrections: If something on this page is wrong, out of date or unclear, we want to know. Email reception@inspireclinic.au with the page name and what you believe is incorrect. Substantive corrections are made promptly, and the guide’s version and last-updated date are changed to reflect it.