What is the primary physiological role of the 70/30 Heliox blend compared to air?
Answer
It is approximately 2.3 times less dense than air
The therapeutic mechanism of Heliox relies on lowering the density of the gas mixture inhaled by the patient. When comparing standard mixtures to atmospheric air, specific density ratios are relevant. The 70/30 Heliox blend, composed of 70% Helium and 30% Oxygen, is specifically noted to exhibit a density approximately 2.3 times less than that of normal air. This reduction in density directly translates to lower resistance as the gas flows through compromised or obstructed airways, which is the physical basis for its clinical utility in reducing the mechanical effort required for respiration.
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