GAS THERAPY IS THE MOST COMMON MODE OF RESPIRATORY CARE 2. MEDICAL GASSES ARE DRUGS Regulated by the FDA...

1. GAS THERAPY IS THE MOST COMMON MODE OF RESPIRATORY CARE
2. MEDICAL GASSES ARE DRUGS
Regulated by the FDA
Need Doctor Order to Administer
3. MEDICAL GASSES
Oxygen Therapy
Hyperbaric Oxygen Therapy
Nitric Oxide Therapy
Helium Oxygen Therapy
4. GAS IN ATMOSPHERE PARTIAL PRESSURES
78% Nitrogen
21% Oxygen
1% Mixed Gasses
0.9% Argon
0.1% Trace Gasses
0.00035% Carbon Dioxide
0.001818 Neon
0.000524 Helium, Methane, Krypton, Nitrous Oxide, Xenon
5. PARTIAL PRESSURE OF A GAS AT SEA LEVEL
Partial Pressure = Barometric Pressure x Fraction of gas concentration
Ex. Oxygen
760 x 0.21 = 159
6. SUBSTANCES EXISTING AS GASES AT ROOM TEMPERATURE AND 1 ATM
Oxygen
Nitrogen
Helium
Hydrogen
Chlorine
Nitrogen Dioxide
7. CHANGES OF STATE
Changes of state involve the inter-conversion of solids, liquids, and gases
8. MELTING AND BOILING POINTS AND LATENT HEATS OF FUSION AND VAPORIZATION OF SOME COMMON SUBSTANCES
Substance Melting Point Heat of Fusion Boiling Point Heat of Vaporization
Water 0°C 100 cal/g 100°C 540 cal/g
Ammonia -75°C 108 cal/g 33°C 327 cal/g
Ethyl alcohol -114°C 26 cal/g 78°C 204 cal/g