Do you find yourself getting breathless climbing a flight of stairs that never used to bother you? Or has that “seasonal cough” been hanging around for weeks – maybe months? Most people brush these signs off as ageing, weather, or stress. But often, they’re your lungs trying to tell you something.
The good news: there’s a simple, painless way to know exactly what’s going on. It’s called a Pulmonary Function Test (PFT), also known as a Lung Function Test – and it could be the missing piece in understanding your breathing.
Why am I always coughing or breathless?
Persistent cough and breathlessness are two of the most common – and most ignored – respiratory symptoms. They can stem from a wide range of causes:
- Asthma or airway inflammation
- Early-stage COPD (Chronic Obstructive Pulmonary Disease)
- Allergies or post-viral airway sensitivity
- Reduced lung capacity from smoking or air pollution exposure
- Sleep-related breathing issues affecting daytime energy
The tricky part is that many of these conditions feel similar in the early stages – a bit of tiredness, a nagging cough, mild breathlessness on exertion. Guessing which one it is doesn’t help. Testing does.
What is a Pulmonary Function Test (PFT) used for?
A Pulmonary Function Test measures how well your lungs are working – specifically, how much air you can breathe in and out, and how efficiently your lungs move that air. It helps identify:
- Whether your airways are narrowed or obstructed (as in asthma or COPD)
- How much air your lungs can actually hold
- Early lung function decline, often before symptoms become severe
- How well any ongoing treatment is working
In short, a PFT gives your doctor an objective, measurable picture of your lung health – rather than relying on symptoms alone.
Is a PFT test painful?
Not at all. This is one of the biggest myths that keeps people from getting tested. A standard PFT (spirometry) simply involves breathing into a mouthpiece connected to a machine, following simple instructions like “breathe in deeply” and “blow out as hard as you can.”
- No needles
- No injections
- No downtime
- Results are usually available the same day
Most patients are surprised by how quick and straightforward the test actually is.
What does a Spirometry test show?
Spirometry, the most common type of PFT, measures two key numbers:
- FVC (Forced Vital Capacity): the total amount of air you can forcefully exhale after a deep breath
- FEV1 (Forced Expiratory Volume in 1 second): how much air you can exhale in the first second
Together, these numbers help determine whether your airways are obstructed (as seen in asthma or COPD), restricted (as in certain lung diseases), or functioning normally. It’s one of the most reliable, evidence-based tools pulmonologists use to diagnose and track lung conditions.
Beyond Spirometry: What is Forced Oscillometry?
While spirometry is the most common lung function test, it requires forceful, deep breathing – which can be difficult for young children, elderly patients, or those who are severely breathless.
Forced Oscillometry (also called Impulse Oscillometry/IOS) is a more advanced lung function test that measures airway resistance simply through normal, relaxed breathing. There’s no need to force air out – you just breathe naturally through a mouthpiece while gentle sound waves measure how your airways respond.
This makes it especially useful for:
- Children who find spirometry hard to perform correctly
- Elderly patients or those with limited breathing effort
- Detecting subtle airway changes that spirometry might miss in early-stage disease
- Patients too breathless to attempt forceful exhalation
At Thuyil & O2 Lung Clinic, Forced Oscillometry is available alongside spirometry, giving a more complete picture of your lung health – particularly useful in early or borderline cases.
When should you get a lung function test done?
You don’t need to wait for symptoms to become severe. Consider a PFT if you:
- Feel breathless during routine activities like walking or climbing stairs
- Have a cough lasting more than 3 weeks
- Are a current or former smoker
- Have a family history of asthma, COPD, or other lung conditions
- Work in an environment with dust, smoke, or chemical exposure
- Are experiencing reduced stamina or unexplained fatigue
- Had COVID-19 and haven’t felt “back to normal” since
PFT Test Cost in Salem
The cost of a Pulmonary Function Test in Salem is affordable and accessible, especially compared to the value of an early, accurate diagnosis. Pricing may vary based on the type of test and whether additional assessments (like post-bronchodilator testing) are needed. For exact pricing, feel free to contact us directly.
Looking for a doctor for breathing problems in Salem?
If breathlessness, chronic cough, or reduced stamina have been affecting your daily life, don’t wait for things to worsen. Dr. TV Rajagopal, a trusted pulmonologist and lung disease specialist in Salem, offers comprehensive Pulmonary Function Testing, along with expert diagnosis and treatment for asthma, COPD, and other respiratory conditions – right here in Salem.
Book your Pulmonary Function Test today and get clarity on your lung health.
Frequently Asked Questions
Source/s: Banner: ChatGPT AI Generated
