Helium :
Colorless , odorless.
Mixture - 79% Helium + 21% O2 = "Heliox"
- Lower density than air
- Used for upper airway obstruction.
- Not useful in lower airway.
Also used to
- study lung volume by gas dilution technique.
- prevent Nitrogen Narcosis.
0 Helium
Helium :
Colorless , odorless.
Mixture - 79% Helium + 21% O2 = "Heliox"
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