Apparatus used to measure the amount of oxygen consumed (and in some instances carbon dioxide produced) from which to calculate the energy expended (indirect calorimetry).
Instrument used for the collection, measurement, or storage of gas.
An instrument used to measure carbon dioxide exhaled and oxygen inhaled, respiratory quotient.
An instrument which measures the amount of air a person inhales or exhales.
An instrument for measuring the volume of air inhaled and exhaled. It is used in tests of ventilation.
A device to test how the lung is working to assess the effects of airway disease or the progress of treatment a procedure called spirometry. It records the total volume of air breathed out the forced vital capacity. The machine also records the volume of air breathed out in one second the forced expiratory volume. In diseases such as asthma, in which the airways are obstructed, the ratio of the forced expiratory volume to the forced vital capacity is reduced.
An apparatus used to measure lung volumes and air flow. The following are typical measurements made on adult patients by using the spirometer: inspiratory reserve volume: the amount that a subject can still inhale by special effort after a normal inspiration; expiratory reserve volume: the volume of air that can still be exhaled after a normal exhalation; tidal volume: the volume of air exhaled or inhaled during normal breathing; vital capacity: the maximum volume of air that can be exhaled after a maximal inhalation; forced vital capacity or forced expiratory volume: the air that can be exhaled during a maximal exhalation.
An instrument used to assess lung function; it measures the volume and flow rate of inhaled and exhaled air.
An apparatus employed to assess an individual’s lung capacity and measure the volume of air that enters and exits the lungs during respiration.
An apparatus utilized to gauge lung capacity. It is also known as a pneumonometer.