Health article
People working with dust, fumes or vapours need structured lung surveillance. This article explains how lung function testing and chest X-ray differ and when to test.
Published 24 September 20265 min read
Workplace dust takes many forms: stone and sand dust, metal dust, wood dust, fibre dust and welding fumes. Particle size determines how deep into the airway dust reaches, and exposure duration drives cumulative risk.
Effects often appear slowly, taking years to show symptoms, which is why periodic testing matters more than waiting for symptoms.
Spirometry measures lung volumes and airflow when you blow out. It captures lung function at that moment, and comparing with reference values and previous tests reveals changes clearly.
The test depends on your effort. Avoid heavy meals within two hours, avoid smoking for at least one hour, and tell staff about inhalers or inhaled medicines.
A chest X-ray shows the structure of the lungs, heart and chest, screening for dust-related changes, tuberculosis and structural abnormalities that may cause no symptoms.
It screens for abnormalities suggestive of TB, but confirmation requires sputum testing and medical assessment. Tell staff before imaging if you are or may be pregnant.
Testing before starting work establishes a baseline, followed by annual testing for those with continuous dust exposure, or as required by your employer and applicable workplace regulations.
The most important protection is controlling dust at source, using local exhaust ventilation, wearing suitable respiratory protection, and avoiding smoking, which clearly increases lung risk.
Key points: Spirometry measures how the lungs are working while a chest X-ray shows structure and screens for tuberculosis. Use both where appropriate, establish a baseline before starting work and retest annually for dust-exposed workers.
This article is general information, not personal medical advice. Diagnosis and treatment require assessment by a doctor. Please consult our medical staff before making decisions.
Health article
It depends on your job requirements and the doctor's judgement. Dust-exposed workers often have both: the X-ray for structure and spirometry for function.
Our staff demonstrates the technique and the test can be repeated. If values remain incomplete, a doctor may arrange a repeat or choose a different test.
We can arrange queue management and on-site visits for groups. Ask us on LINE @824xsgsj about the items that need to be done at the clinic first.
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