breathing happens in low and high pressure in our body justify
Answers
Answer:
Explanation:
The quasi-static pressure-volume (P-V) curve of the respiratory system describes the mechanical
behavior of the lungs and chest wall during inflation and deflation. To eliminate resistive and
convective acceleration effects, the measurement of volume and pressure must be performed during
short periods of apnea or during very slow flow. There are 3 main techniques for acquiring
quasi-static P-V curves: the supersyringe method, the constant flow method, and the multipleocclusion (or ventilator) method. For the information to be interpreted correctly, one must understand the interaction between the lungs and the chest wall, the effects of the supine position, and the
meaning of hysteresis. The P-V curve has been studied in many disease states, but it has been
applied most extensively to patients with acute respiratory distress syndrome, in hopes that it might
allow clinicians to customize ventilator settings according to a patient’s individual respiratory
mechanics and thus protect the patient from ventilator-induced lung injury. However, lack of
standardization of the procedure used to acquire P-V curves, difficulties in measuring absolute lung
volume, lack of knowledge regarding how to use the information, and a paucity of data showing a
benefit in morbidity and mortality with the use of P-V curves have tempered early enthusiasm
regarding the clinical usefulness of the quasi-static P-V curve. K