TNT, Exam Question with accurate
answers, 100% Approved, graded A+
which statement concerning gas molecules is FALSE - ✔✔-Gas molecules collide with each other and the
walls of the gas cylinder and the pressure exer
...
TNT, Exam Question with accurate
answers, 100% Approved, graded A+
which statement concerning gas molecules is FALSE - ✔✔-Gas molecules collide with each other and the
walls of the gas cylinder and the pressure exerted is measured in Liters per minute
RT is setting up a portable liquid oxygen system for a chronic lung patient. the patient is on a 2 L/min nc
and the portable oxygen container holds 4 lbs of oxygen.the therapist should explain to the patient the
oxygen supply will last for approx what length of time? - ✔✔-11.5 hours
which of the following is considered a small cylinder - ✔✔-E cylinder
a home care patient with emphysema receiving O2 at 2 L/min complains he can´t feel any oxygen
coming from the nc attached to an oxygen concentrator. which of the following should the RT do FIRST -
✔✔-Place the nc in water ad check for bubbles
the frangible disk safety relief device will rupture to prevent excessive cylinder pressures when the
pressure reaches approx.? - ✔✔-3000 psi
an emphysema patient receives continuous oxygen at home at 2 L/min from an oxygen concentrator. An
ice storm has knocked out power and is projected to be out for at least 8 hours. the most appropriate
oxygen back-up system in case of a power failure is what? - ✔✔-H cylinder
if a cylinder has a star next to its precious hydrostatic test date, that means the cylinder must be
retested in? - ✔✔-10 years
hydrostatic testing of a gas cylinder will determine what? - ✔✔-cylinder expansion
leaks in the cylinder
cylinder wall stress
which of the following represents the maximum pressure that most oxygen cylinders are normally filled
- ✔✔-2200 psig
the pin index safety system is utilized on what cylinder - ✔✔-small
the diameter index safety system is utilized on what? - ✔✔-flowmeter inlets and outlets
choose the false statements concerning the proper storage of medical gas cylinders - ✔✔-flammable
and non-flammable gases may be stored together
when the temperature of the contents of a gas cylinder increase - ✔✔-the pressure of the gas in the
cylinder increases
a liquid oxygen container is holding 6 lbs of liquid oxygen. this i equal to how many liters of gaseous
oxygen? - ✔✔-2064 liters
an RT is called to a patient´s room because oxygen is leaking from an E cylinder. The RT should do which
of the following - ✔✔-tighten all connections
replace the washer between the cylinder and regulator connections
the contents of a medical gas cylinder may be determined by which of the following - ✔✔-label on the
cylinder
color of the cylinder
a DISS connection is utilized on gas administering equipment which operate at - ✔✔-less than 200 psi
in order to maintain oxygen in its liquid form, it must be stored at what tempeature - ✔✔-below -297*F
you receive an order to set up a carbon dioxide/ oxygen mixture for the treatment of a stroke patient,
you would need to select a cylinder of which color - ✔✔-grey and green
which of the following utilize the American Standard Safety System ASSS - ✔✔-large cylinder outlets
one cubic foot of liquid oxygen is equal to how many cubic feet of gaseous oxygen - ✔✔-860
liquid oxygen storage tanks are stored at what pressure - ✔✔-250 psi
which of the following gases is considered flammable - ✔✔-cyclopropane
liquid oxygen is converted to gas as it passes through what point in the bulk system - ✔✔-vaporizer
if an E cylinder contains 1800 psi and an oxygen set up is connected and running at 6 L/min how long
before the cylinder becomes empty - ✔✔-1 hour and 24 minutes
choose the correct equation for determining cylinder factors - ✔✔-cubic feet of gas in a full cylinder x
28.3
/ 2200psi
you have chosen an E cylinder containing 60 psig of oxygen to transport a patient to the heart cath lab.
the flow is set at 10 L/min how long before the tank is empty - ✔✔-18 minutes
which of the following represents the cylinder factor for a cylinder that has a filling pressure of 2200 psig
and contains 50 cubic feet of gas - ✔✔-.70 L/psig
which of the following medical gases may be beneficial to help treat a patient with chronic hiccups -
✔✔-carbon dioxide / oxygen mixture
during the process of fractional distillation the collected gas mixture is compressed to how many psi
resulting in an increase in temperature - ✔✔-1500-2000 psi
normal working pressure for most RT equipment is - ✔✔-50 psig
at what point in the fractional distillation process does the gas mixture change to a liquid - ✔✔-when
the gas is expanded to 90 psi after being compressed
the pipe used to deliver oxygen from bulk system to the wall outlets in the hospital is made of copper
because of which of the following reasons - ✔✔-it reduces rusting
it reduces oxidation
it is easily soldered
the type of wall outlet that requires attachment of the flowmeter onto a threaded connection is called
which of the following - ✔✔-DISS outlet
which type of compressor is seen most frequently on medical air piping systems and large units - ✔✔-
Piston
a molecular sieve concentrator is capable of delivering a maximum oxygen percentage of which of the
following - ✔✔-95%
which statement about liquid oxygen storage is FALSE - ✔✔-it is stored at a higher pressure that gaseous
oxygen
at which one of the following temperatures will a fusible plug pressure relief device begin to melt - ✔✔-
210*F
nitrous oxide -> - ✔✔-blue
compressed air -> D - ✔✔-yellow
oxygen -> A - ✔✔-green
carbon dioxide -> B - ✔✔-grey
Helium ->C - ✔✔-Brown
you need to transport a patient on a nc running at 6 L/min. In order to ensure the cylinder will last at
least one hour what is the minimum amount of pressure an E cylinder must contain - ✔✔-1400 psig
you have chosen an H cylinder that contains 1600 psig to deliver continuous oxygen to a patient at 10 L/
min. How long will it tae until the cylinder runs down to 500 psig - ✔✔-5.8 hours
which of the following low density medical gases may be beneficial in improving gas flow through
obstructed airways - ✔✔-helium/oxygen mixture
the RT is performing a routine home visit on a 58 year old emphysema patient. The patient receives
continuous oxygen with a nc at 2 L/min using an oxygen concentrator. The patient states that when
traveling in his car, he uses an E cylinder secured in the back seat of his car and a spare cylinder in his
truck for especially long trips. The RT should explain the proper method of cylinder transport and inform
him that - ✔✔-He should not transport the spare cylinder in the trunk, but secure it in the backseat of
the car
the Rt is making a routine visit to the home of a 62 year old patient who receives continuous oxygen
through a nc at 2 L/min using an oxygen concentrator. The patient states she is going to start bowling
two day a week and wants to know the best method of oxygen delivery while she bowls. The RT should
explain to the patient? - ✔✔-to use a portable liquid system
why is it important to crack a cylinder prior to the attachment of a regulator because - ✔✔-it cleans the
valve outlet of dust and debris
which of the following statements regarding oxygen concentrators is FALSE - ✔✔-when the flow is
increased, the delivered oxygen percentage increased
choose the false statement regarding flow restrictors - ✔✔-the flow generally varies from 5-10 L/min
a bourbon gauge regulator is a - ✔✔-adjustable reducing device
the number of stages that a reducing valve has may be determined by - ✔✔-counting the number of
pressure pop-off valves
which of the following is used as a heated humidifier - ✔✔-wick humidifier
a bubble humidifier is capable of producing approximately what % of body humidity - ✔✔-35-40%
when you add a humidifier to the gas outlet of an uncompensated Thorpe tube flowmeter - ✔✔-the
flowmeter will record a lower flow than what is actually being delivered
where is the needle valve located on an uncompensated Thorpe tube flowmeter - ✔✔-between the
flowmeter inlet and the float
when a nebulizer is connected to the outlet of a compensated Thorpe tube flowmeter - ✔✔-the flow
reading will be an accurate delivered flow reading
where is the needle valve located on a compensated Thorpe tube flowmeter - ✔✔-between the float ad
the flowmeter outlet
a Bourbon gauge regulator indirectly measures gas flow by directly measuring - ✔✔-pressure
a Bourbon gauge flowmeter is a - ✔✔-uncompensated flow device
you have just completed setting up an oxygen cannula at 5 L/min. As you kink the cannula tubing you
notice no sound from the humidifier. This could indicate which of the following - ✔✔-a leak around the
humidifier top
a cracked humidifier jar
as inspired air reaches the carina it should contain how many mg of water/liter of air - ✔✔-40-44
a flowmeter has a completely closed needle valve and the float jumps when the flowmeter is plugged
into a wall gas outlet. Which of the following statements is true - ✔✔-this is a normal function in a
compensated flowmeter
you turn a flowmeter completely off in a patient´s room following a treatment but hear gas leaking out
of it. what is the most likely cause of this - ✔✔-the f
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