Pulmonary Function Testing

What are Pulmonary Function Test (PFT’s)?

There are many test that are considered pulmonary function test. The list include PFT’s with and without brocnchodilator, lung volumes, diffusion capacity, and slow vital capacity to name a few. All of these test require the patient to blow into a tube while sitting in a chair.

What do the test measure?

Each test measures a specific function of your lungs or records of specific volume of air in your lungs. All of these measurements allow your doctor or a lung specialist to determine a diagnosis and a proper plan of treatment if needed. The test is also used at times to determine if the medicine you are taking is working effectively.

Are there any instructions?

Yes.  First of all, wear loose clothing. Do not wear any item that restricts your ability to take a deep breath.

·       Secondly, avoid large meals before the scheduled test time

·       Ask your doctor if he/she wants you to use your inhaled medicines prior to the test. MOST DOCTORS want your inhaled medicine WITHHELD 6 HOURS PRIOR to the test.