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Respiratory Care for Cystic Fibrosis Patients

Helping You Breathe Easier

Monitoring and Maintenance

At every clinic visit, we perform the following tests, in accordance with Cystic Fibrosis Foundation standards. 

Pulmonary Function Testing (PFT)

During each clinical visit, we use a hand-held device called a spirometer to measure forced vital capacity (FVC) and forced expiratory volume in one second (FEV1). More comprehensive PFTs are done yearly in the hospital PFT lab, for more complete testing and information.

  • FVC measures the total amount of air a person can forcefully breathe out after one deep breath. 
  • FEV1 measures the amount of air forced out in the first second of the FVC.

These two tests help us identify and treat any lung volume abnormalities.  
Children may be introduced to this equipment and deep-breathing maneuvers as early as age 3. We recommend practicing with them before an appointment. Using a noisemaker, party horn, kazoo, or pinwheel, instruct them to take a deep breath and blow the air all the way out.  

For questions about PFTs, contact your clinic respiratory therapist or your CF physician.

Sputum Culture

Your respiratory therapist will test a sample of your sputum to identify any microorganisms growing in your lungs and determine which antibiotics will best fight the bacteria. Sputum cultures are either collected by a patient’s productive cough or via throat swab. 

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