Pulmonary Function Tests

Pulmonary function tests (PFTs) are a group of breathing tests. They can show how well your lungs are working. PFTs may measure:

  • Call Your Doctor

    After the test, call your doctor if any of the following occurs:

    • Headaches, nausea, muscle aches, dizziness, or general ill feeling
    • Shortness of breath or difficulty breathing
    • Wheezing or persistent coughing
    • Chest pain

  • Definition

    Pulmonary function tests (PFTs) are a group of breathing tests. They can show how well your lungs are working. PFTs may measure:

    • How much air you can blow out
    • How much air your lungs can hold at different times
    • How fast you are blowing air out
    Respiratory System
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  • What to Expect

  • Results

    Your doctor will compare the results of your tests with normal values based on your age, sex, and height, or previous test results. Your doctor will discuss the results with you and decide if further testing or treatment is needed.

  • Reasons for Test

    PFTs may be used to diagnose lung conditions or diseases, such as:

    • Asthma
    • Emphysema
    • Chronic bronchitis

    These tests may also be done to:

    • Measure how much a lung problem is affecting you

    • Evaluate symptoms such as
      coughing
      , wheezing, and trouble breathing
    • Evaluate your lung function before or after a surgery
    • Determine how well a treatment is working

  • Possible Complications

    There are no major complications associated with this procedure.