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ATTENTION: As of July 15, 2018, our Washington office and sleep center location has closed! The new address is:
75 Barclay Circle, Rochester Hills, Michigan 48307. The pulmonary clinic is in Suite 205 and the Sleep Center is in Suite 220.

​​​Rochester (248) 651-6430

Lapeer (810) 667-3111

Lansing (517) 853-5550

Washington Sleep Center (586) 207-1247

     Est. 1987

Pulmonary Function Test

Pulmonary function tests (PFTs) are offered at our Rochester Hills, Lapeer, and Washington office locations. At this time, we do not have pulmonary function testing at our Lansing office​. The test is administered by one of our well-trained technicians and generally takes about 20-30 minutes. The PFT gives the doctor a broad overview of how well your lungs function; it measures your lung volumes, flow rates, and ability to exchange gases. It is used to diagnosis a wide variety of respiratory diseases and help manage your treatment. The PFT is also used to monitor the progression of your condition.

What is pulmonary function testing?

Pulmonary function tests are a broad range of tests that measure how well the lungs take in and exhale air and how efficiently they transfer oxygen into the blood.

Why is the test performed?

The test is performed to diagnose certain types of lung disease (especially asthma, bronchitis, and emphysema) to determine the cause of shortness of breath, to measure the effectiveness of medications, and to measure progress in disease treatment.

How will the test feel?

Since the test involves some forced breathing, some temporary shortness of breath or light-headedness may be experienced. There is a tight-fitting mouthpiece to breathe through, and nose clips are applied.

What will the test tell me?

The test determines the health of your lungs including:

  • How well the lungs exhale
  • Detecting restrictive lung diseases which may be caused by inflammation or scarring of the lung tissue or by abnormalities of the muscles or skeleton of the chest wall
  • Estimating how efficiently the lungs transfer oxygen from the air into the bloodstream

For more information, visit the American Thoracic Society's patient information series article about pulmonary function tests.


  • No inhalers or nebulizers are to be used starting 4 hours prior to testing

  • No smoking for 24 hours prior to appointment
  • All other medications can be taken normally and there are no dietary restrictions