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22 mar 2024 · Spirometry tests are standard procedures doctors use to assess lung function. These tests measure how much air a person can force out of their lungs within 1 second and in total.
Lung volumes and lung capacities refer to the volume of air in the lungs at different phases of the respiratory cycle. The average total lung capacity of an adult human male is about 6 litres of air.
16 lip 2023 · Learn about the definitions, measurements and capacities of lung volumes and how they are affected by pathology. See diagrams, graphs and examples of spirometry, helium dilution and nitrogen washout tests.
The average total lung capacity of an adult human male is about 6 litres of air. Lung volumes measurement is an integral part of pulmonary function test. These volumes tend to vary, depending on the depth of respiration, ethnicity, gender, age, body composition [1] and in certain respiratory diseases.
What to expect during a lung function test: a guide to normal values in spirometry and the interpretation of test results.
Define, identify, and determine values for the pulmonary volumes (inspiratory reserve volume [IRV], tidal volume [TV], expiratory reserve volume [ERV], and residual volume [RV]) and the pulmonary capacities (inspiratory capacity [IC], functional residual capacity [FRC], vital capacity [VC], and total lung capacity [TLC]).
Normal lung volumes ERV = expiratory reserve volume; FRC = functional residual capacity; IC = inspiratory capacity; IRV = inspiratory reserve volume; RV = residual volume; TLC = total lung capacity; VC = vital capacity; V T = tidal volume.
