"Pulmonary Function tests, also known as PFTs, are tools we use to determine the state of health of a child's lungs. Like adult Pulmonary Function Tests (PFTs), this test can provide your child's caregiver with information about how well his/her lungs are working. If your child takes medicine to help him/her breath this test may help determine how well the medicine is working.. Children 5 year of age and older begin to be capable of performing the challenging breathing maneuvers necessary for meaningful pulmonary function testing.
Pulmonary function tests always include spirometry. Spirometry is a test that measures the volume of air that can be exhaled from the lung after the child breathes in their largest possible breath. Spirometry also measures how fast the air comes out (the flow). To perform this test, a patient is asked to place his mouth around a cardboard mouthpiece on a long tube attached to our computers. The patient also puts on a nose-clip to prevent air from leaking out the nose during the test. The patient will first begin by breathing quietly through the mouthpiece. He/ she will then be instructed to take in the biggest breath possible, and then blow it out as hard, as fast, and as long as possible. The computer measures he amount of air breathed out over time.
Another important value is the Total Lung Capacity (TLC), which is a measurement of the total amount of air a patient's lungs can hold. This measurement is performed in a body plethysmograph, or "the Box." The box is a clear Plexiglas booth, similar to a telephone booth. The patient sits inside the booth and breathes into a tube in a manner similar to spirometry, and again the tube attached to a computer. The computer then calculates the patient's lung volume."
The scariest part of the test is putting Ben under anesthesia. It is an oral medicine he will have to take. The procedure takes about an hour. Ryan and I have decided this is what is in Ben's interest to do. I know another CF mom who had her son go through the same test. We will be scheduling the PFT for the end of September. We will keep you posted on the results. For now I leave you with some hilarious pictures. Ben discovered the paper that covers the patients table at the hospital. He had the best time tearing it up and throwing it around!!
I have some info on PFTs on my blog if you'd like to check it out. Just look at the label cloud under PFT.
ReplyDeleteRonnie