Deck 12: Oxygen Supply Systems

Question 1

Because large medical gas cylinders (larger than 'E' sized)may contain a variety of gases besides oxygen,a safety system was designed by the CGA to prevent the interchange of cylinders containing dissimilar gases.What is the name of this system?

A) Frangible Disk
B) Diameter-indexed Safety System
C) Pin Index Safety System
D) American Standard Safety System

Answer 1

American Standard Safety System

Question 2

The most common service pressure indicated on an oxygen cylinder that is followed by a (+)sign is ___________.

A) 50 psi
B) 2200 psi
C) 2015 psi
D) 2 psi

Answer 2

2200 psi

Question 3

How should the contents of a cylinder be identified?

A) Verify the color code of the cylinder
B) Match the label to the color code
C) By the size of the cylinder
D) a and b

Answer 3

a and b

Question 4

The ____________ has developed a color code for the different gases and gas mixtures.

A) U.S. Department of Transportation (DOT)
B) Compressed Gas Association (CGA)
C) Pin Index Safety System (PISS)
D) National Fire Protection Association (NFPA)

Question 5

Hydrostatic testing is required for all cylinders every _____________

A) year.
B) 5 to 10 years.
C) 10 to 15 years.
D) 15 to 20 years.

Question 6

The connection for attaching equipment for patient use is termed a station outlet.These outlets have what kind of fittings?

A) Quick-connect fittings
B) Diameter-index safety system fittings
C) Reducing valve fittings
D) Either a or b

Question 7

Because of the high pressure contained in a medical gas cylinder,a device is needed to contain the gas and to provide a point of attachment for equipment.What is this called?

A) Outlet
B) Stem
C) Pin valve
D) Cylinder valve

Question 8

If a cylinder valve is exposed to excessive temperature in a fire,which type of safety system is incorporated into the valve to release gas pressure?

A) Fusible plug
B) Frangible disk
C) Diameter-indexed Safety System (DISS)
D) Pin Index Safety System (PISS)

Question 9

What happens to a cylinder if it fails hydrostatic testing?

A) The vessel is filled with water to 5/3 of the service pressure.
B) It is filled with another gas.
C) It is destroyed.
D) It is retested.

Question 10

How many cubic feet of oxygen are in an 'E' sized cylinder?

A) 244 cu. ft.
B) 22 cu. ft.
C) 28.3 cu. ft.
D) 2200 cu. ft.

Question 11

What is the color code for an air cylinder?

A) Yellow
B) White
C) Gray
D) Red

Question 12

Cylinders manufactured for the transport of medical gases are constructed in accordance with regulations specifically established by the __________________

A) Department of Transportation (DOT).
B) Compressed Gas Association (CGA).
C) National Fire Protection Association (NFPA).
D) American Standard Safety System (ASSS).

Question 13

A half-full 'E' cylinder will last how long running at 3 L/min?

A) About 180 minutes
B) About 30 minutes
C) About 4 hours, 13 minutes
D) About 1 hour, 43 minutes

Question 14

Which organization recommends the standards for construction of medical gas piping systems?

A) Compressed Gas Association (CGA)
B) National Fire Protection Association (NFPA)
C) Department of Transportation (DOT)
D) Bureau of Standards (BOS)

Question 15

Which cylinder valve is found on gas cylinders containing less than 1500 psi of pressure?

A) Direct-acting cylinder valve
B) Stem valve
C) Diaphragm cylinder valve
D) Outlet valve

Question 16

Certain substances,when exposed to oxygen,may ignite with great force without the addition of heat to initiate the process.This phenomenon is termed __________________

A) the tank factor.
B) cracking a cylinder.
C) spontaneous combustion.
D) hydrostatic testing.

Question 17

What is the color code for a helium and oxygen mixture?

A) White
B) Brown
C) Brown and green
D) Gray and green

Question 18

Each floor of a building is divided into several zones.Each zone has a safety shutoff valve called a _______________

A) zone valve.
B) riser.
C) reserve valve.
D) reducing valve.

Question 19

A piping system is required to have a reserve or backup supply of oxygen.What is the minimum amount of time the reserve system must be able to meet a facility's oxygen needs?

A) 12 hours
B) 24 hours
C) 36 hours
D) 48 hours

Question 20

Medical gas supply systems include all of the following EXCEPT ______________

A) medical gas cylinders.
B) liquid systems.
C) oxygen concentrators.
D) oxygen regulators.

Question 21

What is a device called that provides a precise oxygen concentration between 21% and 100% by mixing air and oxygen?

A) Riser
B) Concentrator
C) Blender
D) Multi-stage regulator

Question 22

A patient needs to be transported from the emergency department to the ICU on a 50% Venturi mask.What oxygen equipment is needed for you to accomplish the transport?

Question 23

You attach a pressure reducing valve to a 'M' sized gas cylinder.When you open the cylinder valve you hear gas leaking from of near the valve-cylinder connection.What should you do?

Question 24

A device that reduces the pressure in the medical gas cylinder from 2200 psi to 50 psi is termed a ________________

A) riser.
B) flowmeter.
C) reducing valve.
D) station outlet.

Question 25

You are going to transport a patient to the MRI department for a MRI scan.The patient is on a non-rebreathing mask at 15 LPM.The procedure will last approximately 60 minutes.What equipment should the practitioner gather for the transport?

Question 26

What device takes air from the atmosphere and separates the oxygen from the other gases in the air,then delivers the oxygen to the patient at as high as 90% concentration?

A) Bourdon gauge
B) Multi-stage regulator
C) Liquid oxygen reservoir
D) Oxygen concentrator

Question 27

If a cylinder needs to be placed in the horizontal position for a transport,which type of flowmeter would be the best to use?

A) Multi-stage regulator
B) Back-pressure compensated flowmeter
C) Uncompensated Thorpe Tube flowmeter
D) Bourdon gauge

Question 28

What is the purpose of 'cracking' a cylinder before use?

A) This primes the system with oxygen so there is no air mixed in with the oxygen with the first part of the gas delivered to the patient.
B) This removes any dust, or particulate matter, from the outlet of the cylinder valve.
C) It causes the regulator to become pressurized precisely to 50 psi before gas is delivered to the patient.
D) It pressurizes the cylinder to make sure it will not leak and compensate for the cylinder until the cylinder is hydrostatically tested.