QuestionSBA
QuestionChoice
This is correct. The procedure described, whereby the patient breathes in as much as they can and then exhales as much as they can, is typically used to measure Vital Capacity (VC). Vital Capacity represents the maximum amount of air a person can inhale and then exhale during a single, maximal effort, and it is a common measure of lung function in spirometry.
10026115
a
Vital capacity (VC)
QuestionChoice
This is incorrect. FRC is the volume of air remaining in the lungs after a normal exhalation and does not involve maximal inhalation and exhalation.
10026116
b
Functional residual capacity (FRC)
QuestionChoice
This is incorrect. Total Lung Capacity is the maximum volume of air the lungs can hold at full inspiration.
10026118
d
Total lung capacity (TLC)
QuestionChoice
This is incorrect. FEV1 is a specific spirometric measurement that assesses the volume of air a person can forcibly exhale in one second after taking a deep breath.
10026119
e
Forced expiratory volume in 1 second (FEV1)
QuestionChoice
This is incorrect. IRV represents the additional volume of air that can be inhaled after a normal inspiration.
10026117
c
Inspiratory reserve volume (IRV)
Concept
Chapter
2693
4212
Lung volumes
Topic
150
Respiratory physiology
17621
A 54 year old male patient attends the lung function clinic for spirometry testing. As part of the test, the patient breathes in as deeply as they can and then exhales as much as they can until their lungs feel empty.

Which of the following measures of lung function is being tested?
a