54 terms

Midterm Study Guide for RT3 Ninjas

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kinetic energy, and potential energy
the 2 types of energy (mechanical)
kinetic energy
what is energy in motion
formula for work
W=FxD, work=force x distance
power
measure of the rate at which work is being performed, P=W/T
joules
unit of energy or work, 1J=1N
kinetic energy equation
KE=1/2(mv2) [2 is squared]
potential energy equation
PE=mgh
melting point
the temperature at which a solid converts to a liquid
freezing point
the temperature at which a liquid is changed to a solid state
boiling point
temperature at which a liquid converts to a gaseous state
evaporation
process in which liquid changes into the vapor state
latent heat
the amount of heat that must be added to a substance to cause a complete change of state
sublimation
process in which solid molecules completely bypass the liquid state and change to a gas
condensation
the opposite of evaporation, conversion of a substance from a gas to a liquid
kelvin to celsius formula
k-273
celsius to kelvin formula
c+273
celsius to fahrenheit formula
(9/5 x C) + 32
fahrenheit to celsius formula
5/9 (f-32)
760 mmHg
the pressure of air at sea level
47 mmHg
water vapor pressure at 37C (normal body temperature)
laminar flow
fluid flow in streamlines, normally associated with the movement of fluids through tubes with smooth surfaces and fixed radii, desired flow when giving treatment to a patient
turbulent flow
movement of fluid that become chaotic and the concentric layers seen with laminar flow is lost, occurs when viscosity of fluid increases sharply, the tubes radius varies, and when the tubes surface is rough and uneven
ASSS
american standard safety system
PISS
pin index safety system
DISS
diameter index safety system
50 PSI
standard working PSI in medical gas
liquid O2
the type of gas that lasts longer
conversion factor for E cylinder
.28
conversion factor for H cylinder
3.14
conversion factor for G cylinder
2.41
minimum PSI to room outlet
50 PSI
concentrators
provide O2, mainly for home use, 2 types, molecular seive and membrane
max filling/service pressure of med gas tank for E & H
2000 psi for E, 2200 psi for H, add 10% to psi if approved
color for oxygen
green
color for carbon dioxide
gray
color for nitrous oxide
light blue
color for helium
brown
color for heliox
brown and green
color for compressed air
yellow
bourdon flowmeter
pressure gauge used on E tanks
thorpe tube flowmeter
pressure gauge used for gas outlet in patient rooms, gas suspends steel ball
nasal cannula
O2 delivery device characterized by small hollow prongs that are inserted into the external nares, 1-6 L/M, low flow
O2 mask that uses a venturi device to provide precise concentrations of high flow O2 to a patient, a.k.a. air entrainment masks
oxygen hood
clear plastic enclosure that is placed around a pediatrics head to deliver oxygen therapy, high flow
low flow mask to deliver O2, 35% to 50% FIO2 at 5 to 10 L/M...no less than 5 L/M
low flow O2 mask with an attached reservoir bag that allows patient to reinhale the first third of their exhaled breath, delivers FIO2 of 0.4 to 0.6 with O2 flows of 6 to 8 L/M
low flow O2 mask similar to a partial-rebreather except they have one way valves, one between the bag and mask, and the others at the exhalation port of the mask, theoretically provide 100% O2, but in actual practice deliver an FIO2 of 0.6 to 0.8
laplace's law
P=2(ST/r)
boyle's law
V1P1=V2P2 or V1/V2=P2/P1, temperature is constant so they cancel out
charle's law
V1/T1=V2/T2, pressure is constant so they cancel out
gay-lussac's law
P1/T1=P2/T2, volume is constant so they cancel out
combined gas law
P1V1/T1=P2V2/T2
dalton's law
PO2=(total barometric pressure)(gas),
example PO2=(760)(0.21).....PO2=159 mm Hg