What is Inspiratory Vital Capacity (IVC)?

Inspiratory Vital Capacity (IVC) refers to the maximum volume of air a person can inhale after a normal exhalation. It measures lung function and is often used in pulmonary function tests to assess respiratory health. IVC is one of the components of vital capacity, including tidal and expiratory reserve volumes. During a pulmonary function test, a person is asked to inhale as deeply as possible after a normal exhalation, and the volume of air inhaled is measured. This measurement can provide insights into lung function and capacity, helping healthcare professionals assess respiratory conditions such as asthma, chronic obstructive pulmonary disease (COPD), and other respiratory disorders.