Some apparatus dead space may actually reduce total dead space, as an ETT bypasses the majority of anatomical dead space of the patient (nasopharynx).ĭead space from the patient. The normal range for dead space amount is roughly the bend mass of the body and averages concerning a third of the latent tidal volume (450 to 500 mL).
Types of Dead Spaceĭead space from equipment, such as tubes ventilator circuitry. Physiologic dead space anatomic dead space plus alveolar dead space. Fowler's method - monitor expired N2 after single breath of O 2 (Levitzky Fig 3-8). Glomerular Filtration and Tubular Functionĭead space is the proportion of minute ventilation which does not participate in gas exchange. Neural reflexes, traction or compression and pathologic changes can alter the anatomic dead space.
Functional Anatomy and Control of Blood Flow
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