3 doctors weighed in:
My doctor said I need to have full pulmonary function tests. What can I expect?
3 doctors weighed in

Dr. Aaron Milstone
Internal Medicine - Pulmonology
2 doctors agree
In brief: 45 Minutes
It takes approximately 45 minutes to complete full pulmonary function tests.
The first part of the test will involve measurement of your spirometry (fev1 and fvc); you will be required to take large breaths of air and blow them out through a small tube attached to a machine. Next you will measure lung volumes and tlco (see my answer on tlco elsewhere in this section). The test is non invasive.

In brief: 45 Minutes
It takes approximately 45 minutes to complete full pulmonary function tests.
The first part of the test will involve measurement of your spirometry (fev1 and fvc); you will be required to take large breaths of air and blow them out through a small tube attached to a machine. Next you will measure lung volumes and tlco (see my answer on tlco elsewhere in this section). The test is non invasive.
Dr. Aaron Milstone
Dr. Aaron Milstone
Thank
Dr. Mario Matos-Cruz
Surgery - Thoracic
In brief: Blow
You have to blow into a mouthpiece following the instructions that the respiratory therapist will give you.
Do not worry but give it your best effort.

In brief: Blow
You have to blow into a mouthpiece following the instructions that the respiratory therapist will give you.
Do not worry but give it your best effort.
Dr. Mario Matos-Cruz
Dr. Mario Matos-Cruz
Thank
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Dr. Aaron Milstone
Board Certified, Internal Medicine - Pulmonology
23 years in practice
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