Physiological dead space can be thought of as areas of the lung that are well ventilated but poorly perfused hence, much of the ventilation to those areas is “wasted.” That is, the well-ventilated areas add little to gas exchange for lack of adequate perfusion. What is physiological dead space in the lungs? Dead space is an integral part of volume capnography, which measures expired CO2 and dead space (VDphys/VT) on a breath-by-breath basis for efficient monitoring of patient ventilation. What is the physiological importance of dead space?Įstimating the dead space can be of significant value in clinical situations for diagnostic, prognostic, and therapeutic value. 7 How do you calculate anatomical dead space?.6 What is meant by Dead Space in Physiology?.3 How is physiologic dead space measured?.
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