These volumes are needed when there is suspicion of restrictive pattern, which can be presented along with obstructive pattern with FVC < 80%.
Total lung volume equals Vital Capacity + Residual Volume.
Complications of tidal volume include barotrauma (lung damage from high pressures), volutrauma (lung damage from excessive stretch), and ventilator-associated lung injury. Inadequate tidal volume can lead to hypoventilation and hypercapnia, while excessive tidal volume can cause ventilator-induced lung injury. Close monitoring and adjustment of tidal volume is important to avoid these complications.
Your total lung capacity is the total volume of the lung after maximum inspiration. (average 6 litres).
residual volume
vital capacity
smoking
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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
The equation to measure lung volume is Total Lung Capacity (TLC) = Vital Capacity (VC) + Residual Volume (RV). TLC represents the maximum amount of air the lungs can hold, VC is the maximum amount of air that can be exhaled after a deep inhalation, and RV is the amount of air that remains in the lungs after maximum exhalation.
The lung volume that represents the total volume of exchangeable air is the vital capacity. It is the maximum amount of air a person can exhale after taking the deepest possible inhalation.
Lung volume can be measured using a simple spirometer test. This test involves taking a deep breath and blowing into a tube connected to the spirometer, which measures the volume of air exhaled. The results can provide information on lung function and capacity.