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When is it done?
Pulmonary function testing is useful for evaluation
of a variety of forms of lung disease or for assessing
the presence of disease in a patient with known risk
factors, such as smoking. Other indications for pulmonary
function tests include:
- Evaluation of symptoms such as chronic persistent
cough, breathlessness, and chest pain.
- Objective assessment of treatment.
- Evaluation of effects of exposure to dusts or chemicals
at work.
- Risk evaluation of patients prior to cardio-thoracic
or upper abdominal surgery.
- Objective assessment of impairment or disability.
These tests should be done least once
a year for high risk individuals or as and when recommended
by the doctor. There are 3 types of PET:
- Routine: For patients who are to be operated.
- Routine with broncho-dilataor: For patients with
lung problems like asthma, bronchitis & COPD.
- Dynamic: People who have pulmonary fibrosis (severe
asthma, lung cancer etc).
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