PPT Test | Pulmonary Function Tests

Pulmonary Function Tests

Dr. Parthiv Shah, a leading lung specialist in Mumbai, offers comprehensive pulmonary function tests (PFTs) to assess lung function accurately. These tests serve various purposes, including comparing lung function with established standards, monitoring chronic diseases like asthma and COPD, detecting early changes requiring treatment adjustments, identifying airway narrowing, evaluating the need for medications, assessing lung damage from environmental exposures, determining surgical suitability, and more.

    pulmonary function tests


    Spirometry, a common lung function test, measures the volume of air you can inhale and exhale quickly. During the test, you will be asked to take a deep breath and then forcefully exhale into a tube connected to a spirometer. This test may be repeated multiple times for accuracy, and sometimes a bronchodilator is administered to assess its impact on your breathing.

    Diffusion Studies

    Diffusion tests evaluate how efficiently oxygen moves from your lungs into your bloodstream. You will breathe into a mouthpiece, exhale as much air as possible, take a deep breath, hold it briefly, and then exhale as instructed. This test provides insights into how well your lungs transfer oxygen.

    Body Plethysmography

    Body plethysmography measures the amount of air in your lungs after a deep inhalation and how much air remains after maximal exhalation. This test offers detailed information about lung volume and function.

    Why Are Pulmonary Function Tests Done?

    Pulmonary function tests are conducted for several reasons:

    • Comparison with Standards: PFTs help compare your lung function with established standards to determine how well your lungs should be functioning.
    • Monitoring Chronic Diseases: They are essential for tracking the impact of chronic conditions like asthma, COPD, or cystic fibrosis on lung function over time.
    • Early Detection: PFTs can identify subtle changes in lung function early on, indicating the need for treatment adjustments.
    • Airway Assessment: These tests can detect narrowing in the airways, providing valuable insights into respiratory health.
    • Medication Efficacy: They help determine the effectiveness of medications like bronchodilators in improving lung function.
    • Environmental Exposure: PFTs can reveal any lung damage caused by exposure to harmful substances in your home or workplace.
    • Surgical Suitability: They assess your lung function to determine your ability to tolerate surgery and other medical procedures effectively.


    Interpreting PFT Results

    Understanding the results of pulmonary function tests is crucial for assessing lung health and guiding treatment decisions:

    • Spirometry Results: Spirometry measures how much air you can inhale and exhale quickly. Results include Forced Vital Capacity (FVC), Forced Expiratory Volume in one second (FEV1), and FEV1/FVC ratio. Abnormal values may indicate obstructive or restrictive lung diseases.
    • Diffusion Studies: These tests evaluate how well oxygen moves from your lungs into your bloodstream. Results help assess gas exchange efficiency in the lungs.
    • Body Plethysmography: This test provides information on lung volume and airway resistance, aiding in the diagnosis of conditions like COPD and asthma.


    What should I know before doing a diffusion test?

    • Do not smoke and stay away from others who are smoking on the day of the test.
    • If you are on oxygen, you will usually be asked to be off oxygen for a few minutes before taking this test

    Importance of Normal Values

    Normal lung function values vary based on individual characteristics such as height, age, and gender. Dr. Parthiv Shah uses predicted values tailored to your specific profile to compare and interpret your test results accurately. Deviations from these predicted values can indicate underlying respiratory issues that may require further evaluation and treatment.

    By offering detailed and precise pulmonary function tests, Dr. Parthiv Shah ensures a thorough assessment of lung function, enabling personalized care and effective management of respiratory conditions. These tests are essential tools in the comprehensive evaluation of lung health and play a vital role in optimizing respiratory well-being.

    Preparing for Tests

    To ensure accurate results, it’s essential to follow specific guidelines before the tests:

    • Avoid smoking for at least 1 hour before the test.
    • Refrain from alcohol consumption for at least 4 hours prior.
    • Do not engage in heavy exercise 30 minutes before the test.
    • Wear loose clothing for easy breathing.
    • Avoid large meals within 2 hours of the test.
    • Consult with your healthcare provider regarding medication intake on the test day.

    Dr. Parthiv Shah, the best pulmonologist in Mumbai, is here to help you to know more about Pulmonary Function Tests. Book your appointment today at Sparsh Superspeciality Lung Clinic and take the first step towards better lung health by calling +91 90297 72904.