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pulmonary function tests

Breathing tests that measure how much air the lungs hold and how fast air moves in and out.

PUL-muh-nair-ee FUNK-shun tests noun

Word parts

pulmon/o lung-ary relating to

What it means

A group of tests in which the client breathes into a mouthpiece connected to a machine. Spirometry, the most common one, measures how much air a person can blow out and how fast, which shows whether the airways are narrowed (as in asthma or COPDsee-oh-pee-dee (said as letters)Chronic obstructive pulmonary disease: a long-term lung disease that makes it hard to move air out of the lungs.chronic long-lastingobstructive blockingpulmon/o lung-ary relating toFull entry ) or the lungs cannot expand fully. The test is often repeated after a bronchodilator to see if the numbers improve.

For the nurse

Explain that the client will need to take deep breaths and blow out as hard and fast as they can, sometimes many times. Ask whether to hold inhalers before the test, as the lab or provider instructs, and tell the client not to smoke or eat a heavy meal beforehand.

At a glance

AbbreviationsPFTs
Spanishpruebas de función pulmonar
Also writtenpulmonary function test, PFT, PFTs

Related terms

COPD

Chronic obstructive pulmonary disease: a long-term lung disease that makes it hard to move air out of the lungs.

pulmonary

Relating to the lungs.

emphysema

A long-term lung disease in which the walls of the tiny air sacs are damaged and lose their stretch.

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