These volumes are needed when there is suspicion of restrictive pattern, which can be presented along with obstructive pattern with FVC < 80%.
Mechanical properties of the lung when there is no air flow
No equation is possible, lung volume is measured by a machine in to which you breath.
Total lung volume equals Vital Capacity + Residual Volume.
Your total lung capacity is the total volume of the lung after maximum inspiration. (average 6 litres).
residual volume
vital capacity
inches
smoking
These procedures remove 20-30% of severely diseased lung tissue; the remaining parts of the lung are joined together
The lung doesn't relax, it is controlled by the diaphragm When it relaxes the volume of the lungs decrease during expiration When it contracts the volume of the lungs increases during inhilation
vital capacity
Yes
Respiratory volume or respiratory minute volume is the volume of air which can be inhaled or exhaled from a person's lung in one minute.It is normally consider when a person on a ventilator for breathing problem due to sickness or injury. It is calculated by taking the tidal volume( or lung volume ) and multiplying it by the respiratory rate( the number of breaths per minute a person is taking).