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Pulmonary Function Tests (PFTs)

Considering the average person takes about 23,000 breaths a day, any problems with the lungs can have a major impact on your health and life.

The experts at Barstow Community Hospital are here to help with a full range of care, including pulmonary function tests (PFTS). These simple, non-invasive exams measure how well your lungs work, so we can create a plan to help you breathe easy again.

About PFTs

Pulmonary function tests are a group of tests that assess your ability to breathe and how effective your lungs are in delivering oxygen to the rest of your body.

These tests are recommended for a variety of reasons, including: 

  • Part of a routine physical, especially if you smoke or have a history of smoking
  • Part of a work physical, if you’re regularly exposed to certain substances
  • To help diagnose lung conditions, such as asthma, chronic bronchitis or chronic obstructive pulmonary disease (COPD)
  • To assess difficulty breathing from a respiratory infection or chest injury
  • To determine if an existing lung disease is progressing or responding to treatment
  • To check if you are having side effects from certain medicines that can affect breathing
  • To test your lung function before surgery

Types of Tests

Depending on your specific needs, your pulmonologist at Barstow Community Hospital may perform one or a combination of pulmonary function tests, each using a specially fitted mouthpiece.

  • Spirometry: Measures the amount of air you breathe in and out, and how fast. You’ll sit in front of a machine to do a number of breathing exercises. You may be asked to breathe in a medicine that helps relax the muscles around the airway, making it easier to exhale.
  • Diffusion capacity test: Measures how well the oxygen in your lungs can move to the bloodstream. You’ll be asked to breathe in certain gases such as oxygen, helium or carbon dioxide.

Recovery and Follow-Up Care

All PFTs are generally quick and safe for most people. Prior to your procedure, your doctor will provide special instructions and discuss any concerns. Your comfort is our priority – you will be closely monitored by our respiratory technologists during and after for dizziness, shortness of breath or any other problems.

If you have a history of lung or breathing difficulty, you may be tired after the tests. You’ll have the chance to rest afterwards until you’re comfortable enough to go home. Your doctor will also talk with you about your results and next steps for treatment, if needed.

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