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![]() ![]() ![]() The lungs represent an interface between ventilation and perfusion. This is why you start assessing your patient with an airway, breathing, circulation approach, because that's the most life-threatening order in which problems present. To survive, we need to get oxygen from the air into our blood, in order to supply the tissues. ![]() Dead space is important to think about, especially in paediatrics.Ventilation/Perfusion matching is everything (sort of).Increased physiological dead space and air volume indicate abnormalities of the alveoli.In addition, particles larger than 2.0 μm in the inhaled air are trapped in this area before entering the alveoli.The respiratory air is saturated by water vapor in the anatomical dead space and enters the alveoli.Figure: Bohr’s Equation Significance of the Dead Space ![]() The physiologically dead space can be determined by Bohr’s equation.
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