Similar term(s): pulmonary function.
The term "lung function" refers to how well a person is breathing.
Source: GreenFacts
Lung (or pulmonary) function tests are a variety of tests that measure how well a person breathes.
They can be used to help diagnose asthma, as well as to assess the severity of a person's asthma and how effectively it's being managed.
One example of a lung function test is called spirometry, which involves breathing into a device that records how much and how quickly air can be breathed out following a deep breath in.
Source:
KidsHealth
dictionary
GreenFacts Summary on Respiratory Diseases in Children:
Español: Función pulmonar
Français: Fonction pulmonaire