Pulmonary Function Tests

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What are PFTs?

Think of PFTs as a fitness test for your lungs. They measure various aspects of your lung function, like:

  • Lung capacity: how much air you can breathe in and out.
  • Airflow: how quickly and easily you can move air in and out of your lungs.
  • Gas exchange: how well your lungs transfer oxygen from the air into your blood and remove carbon dioxide.

These tests provide a comprehensive picture of how well your lungs are working and can help diagnose a variety of respiratory conditions, including:

  • Asthma
  • COPD (Chronic Obstructive Pulmonary Disease)
  • Emphysema
  • Pulmonary fibrosis
  • Interstitial lung disease
  • Lung cancer


Benefits of PFTs:

  • Early detection: PFTs can identify lung problems early, even before symptoms appear, leading to prompt treatment and better outcomes.
  • Monitoring treatment: They help track the effectiveness of treatment for existing lung conditions.
  • Diagnosis guidance: PFTs, along with other medical tests, help doctors pinpoint the specific cause of your respiratory problems.
  • Safety precautions: They can be used to assess your lung function before surgery or other medical procedures.


What to Expect During PFTs:

PFTs are generally non-invasive and painless. You may be asked to:

  • Breathe into a spirometer: This device measures the volume and flow of air you exhale.
  • Hold your breath: This assesses your lung capacity.
  • Blow into a tube with resistance: This tests your airway strength.
  • Inhale a special gas mixture: This evaluates your lungs’ ability to transfer oxygen and carbon dioxide.

The entire process usually takes about 30-60 minutes.

Decoding Your PFT Results:

Don’t worry about the numbers and graphs on your PFT report. Your doctor will interpret them based on your age, height, health history, and other factors. Feel free to ask questions and clarify any doubts you may have.

PFTs: Empowering Your Lung Health Journey

PFTs are a valuable tool in maintaining lung health and diagnosing respiratory problems. By understanding how your lungs are working, you and your doctor can make informed decisions about your health and optimize your treatment plan. Remember, your lungs are the guardians of your breath, and taking care of them is taking care of your overall well-being.

General Instruction

How to prepare for PFT :-
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