Diagnosing asthma
Read moreParticularly with reversibility testing after a reliever.
All Medicare-eligible consultations are bulk billed for patients with a valid Medicare card. Some items, including privately purchased vaccines and consumables, attract a fee.
Spirometry measures how much air you can move and how fast. It is the test that turns “a bit short of breath” into an actual diagnosis — and in a coal and dust region, that matters.
Standard GP consultations are bulk billed for everyone with a valid Medicare card.You breathe in as deeply as you can and then blow out as hard and as long as possible into a mouthpiece. It is repeated several times to get a reliable result. The main numbers are FEV1 — how much air you blow out in the first second — and FVC, the total you can blow out.
The defining feature of obstruction, as in asthma and COPD, is a reduced FEV1 to FVC ratio. Sometimes the test is repeated after a puff of reliever to see whether the numbers improve, which helps distinguish asthma from COPD. Spirometry can suggest a restrictive pattern but cannot confirm one — that requires fuller lung function testing at a specialist laboratory.
Technique matters enormously. Several attempts are done so the best reliable result is used.
It is effortful rather than painful. People often feel briefly light-headed or cough. Both settle.
Dust exposure from mining, farming, welding, quarrying and construction all affect the lungs, sometimes decades later. In the Hunter that history is a real part of the picture.
Particularly with reversibility testing after a reliever.
Where obstruction persists despite a reliever.
Tracking lung function over years, which is more informative than one result.
Baseline and ongoing testing where there is dust exposure.
A poorly performed test can look abnormal when the lungs are fine.
A restrictive pattern needs fuller testing at a specialist laboratory.
The whole appointment takes 20 to 30 minutes.
Usually not — you will be told which to withhold and for how long when you book.
A light meal is fine. Avoid a heavy one, and avoid vigorous exercise and smoking beforehand.
Usually the same visit, explained alongside your symptoms and history.
Spirometry on site
Asthma & COPD diagnosis
Dust exposure history
Occupational lung health
Reversibility testing
Bulk billed
Book ahead
Results explained
Spirometry on site
Asthma & COPD diagnosis
Dust exposure history
Occupational lung health
Reversibility testing
Bulk billed
Book ahead
Results explained
Spirometry on site
Asthma & COPD diagnosis
Dust exposure history
Occupational lung health
Reversibility testing
Bulk billed
Book ahead
Results explained
No, but it is effortful. Light-headedness and coughing are common and settle quickly.
Twenty to thirty minutes, longer with reversibility testing.
Usually you withhold certain ones. You will be given specific instructions.
Standard consultations are bulk billed with a valid Medicare card.
It is a key part of diagnosis, especially with reversibility testing, alongside your history.
It is common to need practice. The staff will coach you, and it is repeated until a reliable result is obtained.
Very much. Tell us about mining, farming, welding, quarrying and construction work, however long ago.
No. Your GP can arrange it here.
General information onlyThis page is general health information for anyone who finds it useful. It is not advice about your own situation and it does not replace a consultation with a doctor who knows you. If you are worried about a symptom, book an appointment or call (02) 6530 7404. In an emergency, call 000.
Bulk billed with a valid Medicare card · Mon–Fri 8:00am–5:00pm · Muswellbrook Fair, Rutherford Road.
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