Homework answers / question archive / Fanshawe College - RESP 1023 Chapter 03: Manufacture, Storage, and Transport of Medical Gases MULTIPLE CHOICE 1)Which of the following gases support combustion? Air Oxygen Helium Carbon Dioxide a

Fanshawe College - RESP 1023 Chapter 03: Manufacture, Storage, and Transport of Medical Gases MULTIPLE CHOICE 1)Which of the following gases support combustion? Air Oxygen Helium Carbon Dioxide a

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Fanshawe College - RESP 1023

Chapter 03: Manufacture, Storage, and Transport of Medical Gases

MULTIPLE CHOICE

1)Which of the following gases support combustion?

Air

Oxygen

Helium

Carbon Dioxide

a.	2 only	c.	2 ,  3
b.	1, 2	d.	1 , 3,  4

2. Which of the following gases is the least dense?
   1. Carbon dioxide       c.         Helium
   2. Nitrous oxide          d.         Air
3. Which gas has been used successfully in the treatment of pulmonary hypertension of the newborn?
   1. Oxygen       c.         Nitrous oxide
   2. Nitric oxide d.         Helium-oxygen mixture
4. In high concentrations, which of the following gases is a potent anesthetic?
   1. Nitric oxide c.         Carbon dioxide
   2. Nitrous oxide          d.         Helium-oxygen mixture
5. Which of the following gases is used to decrease the work of breathing associated with severe airway obstruction?

1. Nitric oxide c.         Helium-oxygen mixture
2. Nitrous oxide          d.         Carbon dioxide–oxygen mixture

6. Chemical pneumonitis and pulmonary edema can be caused by which of the following? a.            Nitrous oxide
   2. Carbon dioxide
   3. Excess amounts of nitric oxide
   4. A combination of nitric oxide and nitrogen dioxide
7. Carbon dioxide can be obtained by which of the following methods?
   1. Heating uranium ore
   2. Combustion of natural gas
   3. Fractional distillation of liquid air
   4. Oxidizing ammonia at high temperatures
8. Which agency is responsible for the regulations that govern the manufacture, storage, and transport of compressed gases?
   1. Bureau of Medical Devices
   2. Compressed Gas Association (CGA)
   3. U.S. Department of Transportation (DOT)
   4. U.S. Food and Drug Administration (FDA)
9. Which agency sets purity standards for medical gases?
   1. CGA
   2. DOT
   3. FDA
   4. International Standards Organization (ISO)
10. Safety systems for medical gases are recommended and provided by:
    1. DOT.
    2. CGA.
    3. FDA.
    4. National Fire Protection Association (NFPA).
11. A cylinder has “DOT 3AA 2015” stamped on it. What does the 3AA stand for?
    1. Ownership mark     c.         Non–heat-treated carbon-steel
    2. Manufacturer’s mark         d.         Heat-treated, high-strength steel
12. A cylinder has “DOT 3AL 2015” stamped on it. What does the 3AL stand for?
    1. Manufacturer’s initials
    2. Constructed of heat-treated, high-strength steel
    3. Required to undergo hydrostatic testing every 3 years
    4. Constructed of specially prescribed seamless aluminum alloys
13. Which type of cylinder is produced from non–heat-treated carbon-steel?
    1. 3      c.         3 AA
    2. 3A    d.         3 AAA
14. If the maximum filling pressure is marked as 2050 lb-force per square inch gauge (psig), this cylinder is capable of holding _____ psig.
    1. 1845            c.         2255
    2. 2050            d.         2460
15. An asterisk following the reexamination date on a cylinder indicates that the cylinder:
    1. has passed the test.            c.         must be retested every 10 years.
    2. must be retested every 5 years.     d.         has been sold to another company.
16. Which size cylinder would be most appropriate for use during patient transport?
    1. H     c.         M
    2. G     d.         E
17. Which of the following is not marked on a cylinder?
    1. Ownership marks
    2. Method of production
    3. Serial number of the cylinder
    4. Type of material used to construct the cylinder
18. A plus sign after an examination date indicates that the cylinder:
    1. may be retested in 5 years.
    2. may be retested in 10 years.
    3. has been sold to another company.
    4. has complied with the requirements of the test.
19. The color codes for cylinders are prescribed by the:
    1. U.S. National Formulary.    c.         FDA.
    2. CGA.            d.         American Standards Association.
20. What is the cylinder color for nitrous oxide?
    1. Red  c.         Brown
    2. Black and white      d.         Light blue
21. What is the international color code for compressed air?
    1. Gray            c.         Yellow
    2. Black           d.         Black and white
22. Which of the following appear(s) on the labels of gas cylinders?
    1. Chemical symbol of the contents
    2. Precautionary measures for the gas
    3. Specific hazards related to use of the gas
    4. Volume of the cylinder marked in liters at 70? F

22. 1. 1      c.         1 , 2, and  3
    2. 1 and 4        d.         1 , 2, 3, and  4
23. Which agency sets standards for the purity of medical gases?
    1. U.S. National Formulary     c.         FDA
    2. CGA d.         American Standards Association
24. A 97% purity standard is required for which of the following gases?
    1. Ethylene      c.         Nitric oxide
    2. Nitrogen      d.         Nitrous oxide
25. What is the purity standard for oxygen?

a.	99%	c.	97 %
b.	98%	d.	95 %

26. Which of the following statement(s) is (are) true about cylinder valves?
    1. Diaphragm valves can withstand pressure greater than 1500 psig.
    2. Direct-acting valves are used for pressure less than 1500 psig.
    3. Diaphragm valves should be used with flammable gases.
    4. Leakage cannot occur with direct-acting valves.

26. 1. 3      c.         2  and  3
    2. 1      d.         1  and  4
27. Which of the following statement(s) is (are) not true about cylinder valves?
    1. Diaphragm valves cannot withstand pressure greater than 1500 psig.
    2. Direct-acting valves are used for pressure greater than 1500 psig.
    3. Diaphragm valves should not be used with anesthetic gases.
    4. Stem leakage can occur with direct-acting valves.

27. 1. 3      c.         1  and  4
    2. 2 and 4        d.         1 , 2, and  3
28. Which of the following statement(s) is (are) true about diaphragm type of valves?
    1. A partial rotation of a diaphragm type of valve will not open the stem.
    2. The valve seat in a diaphragm type of valve does not turn.
    3. The diaphragm type of valve contains two fiber washers.
    4. The diaphragm type of valve uses a threaded stem.

28. 1. 2      c.         3  and  4
    2. 1 and 4        d.         2  and  4
29. The diaphragms of a diaphragm type of valve are made of:
    1. steel.
    2. copper.
    3. aluminum.
    4. chrome-molybdenum.

a.	2	c.	3  and  4
b.	2 and 3	d.	1  and  2

30. Wood’s metal is used to make:
    1. gas cylinders.
    2. fusible-plug pressure-relief valves.
    3. rupture-disk pressure-relief valves.
    4. spring-loaded pressure-relief devices.
31. Which type of valve operates on the principle that as the pressure in a cylinder increases, the temperature of the gas increases?
    1. Direct-acting valves            c.         Rupture-disk pressure-relief valves
    2. Fusible-plug pressure-relief valves d.         Spring-loaded pressure-relief valves
32. Which agency designed the safety systems for outlet connections of cylinder valves?
    1. Z-79 Committee
    2. CGA
    3. FDA
    4. American National Standards Institute (ANSI)
33. Medical gas cylinder valve outlets always have connections that are _____-handed and _____.
    1. right; external         c.         left; external
    2. right; internal         d.         left; internal
34. Which safety system is used with small cylinders, sizes “A” through “E”?
    1. Pin Index Safety System
    2. Diameter Index Safety System
    3. Direct-Acting Valve Safety System
    4. American Standard Index Safety System
35. The cylinder outlet diameter for a “G” size oxygen cylinder is _____ inches.
    1. 0.830           c.         0.960
    2. 0.903           d.         0.965
36. A nitrous oxide “H” size cylinder cannot be attached to oxygen equipment because the nitrous oxide cylinder has which of the following?
    1. A different outlet size
    2. A different thread type
    3. An outer threading system
    4. Internal threading; and oxygen has an external threading

36. 1. 1, 2, 3, and 4           c.         2  and  3
    2. 2, 3, and 4   d.         1  and  2
37. Which of the following types of threading does a compressed air cylinder have?
    1. Right-handed
    2. Left-handed
    3. Internal
    4. External

a.	2 and 3	c.	2  and  4
b.	1 and 4	d.	1  and  3

38. What are the pin positions for an “E” size oxygen cylinder?
    1. 2 and 4        c.         2  and  6
    2. 2 and 5        d.         3  and  5
39. What are the pin positions for an “E” size compressed air cylinder?
    1. 1 and 5        c.         2  and  5
    2. 1 and 6        d.         3  and  5
40. Which of the following procedures should be followed in setting up a compressed gas cylinder at a patient’s bedside?
    1. Inspect the cylinder and valve for dirt, debris, and oil.
    2. Make sure the cylinder is properly secured.
    3. Tighten the regulator with a pipe wrench.
    4. Open the cylinder valve completely.

40. 1. 3 and 4        c.         1 , 2, 3, and  4
    2. 1 and 2        d.         1 , 2, and  4
41. The best position for the cylinder valve when it is being used is:
    1. completely open.
    2. two turns toward the left.
    3. one turn, open toward the right.
    4. one half-turn back from completely open.
42. After connecting an oxygen regulator to an “H” cylinder and turning the direct-acting valve on, the respiratory therapist attempts to turn on the flow of oxygen. The desired gas flow is not achieved. Which of the following is (are) the most likely problem(s)?
    1. The therapist is using the wrong regulator.
    2. The pressure in the cylinder is inadequate.
    3. The regulator outlet is obstructed.
    4. There is a leak in the connection between the cylinder outlet and the regulator.

42. 1. 1      c.         2  and  3
    2. 2 and 4        d.         1 , 2, and  4
43. An “E” size cylinder is turned on, and the flowmeter is off. Which of the following is (are) the most likely cause(s) of a hissing sound?
    1. A cracked flowmeter
    2. Inadequate pressure in the cylinder
    3. An obstruction at the regulator outlet
    4. A leak in the connection between the yoke and the cylinder opening

43. 1. 2      c.         1  and  3
    2. 1 and 2        d.         1  and  4
44. A full “H” size cylinder is used to provide oxygen to an air-entrainment mask at 6 L/min. If the cylinder is replaced at 500 psig, how long will it last?
    1. 5 hours        c.         10  hours 50 minutes
    2. 10 hours 20 minutes           d.         15  hours 23 minutes
45. An “E” size cylinder with 1600 psig is used to provide oxygen to a simple mask running at 5 L/min during a transport. The cylinder will last:
    1. 8 hours.       c.         68  minutes.
    2. 56 minutes. d.         89  minutes.
46. An “E” size oxygen cylinder with 2000 psig in it is being used at 4 L/min. How much will be used in 45 minutes?
    1. 26.2 psig     c.         180  psig
    2. 140 psig      d.         643  psig
47. A “G” size oxygen cylinder with 1450 psig is being used at 5 L/min. This cylinder will be empty in approximately _____ hour(s) and _____ minutes.
    1. 1; 30            c.         11 ;  30
    2. 2; 39            d.         15 ;  16
48. The K cylinder at a patient’s bedside contains 1300 psig and is using 7 L/min. It will take approximately _____ hours to use 800 psig.
    1. 3.7   c.         6
    2. 9.7   d.         4
49. The E cylinder on a crash cart contains 900 psig. How long would the cylinder last if used at 10  L/min?
    1. 1 hour         c.         3  hours 36 minutes
    2. 25 minutes  d.         4  hours 42 minutes
50. A “G” size cylinder with 2000 psig is used for 6 hours at 5 L/min. How much gas was used during this time?
    1. 2000 psig    c.         573  psig
    2. 750 psig      d.         107  psig
51. Which of the following statements is (are) true with regard to liquid bulk systems?
    1. Liquefied oxygen occupies a fraction of the space required for the storage of gaseous oxygen.
    2. The CGA regulates the construction of liquid oxygen systems.
    3. A bulk oxygen system contains more than 40,000 ft of oxygen.
    4. The working pressure of a liquid bulk oxygen system is 50 psig.

51. 1. 2      c.         1  and  3
    2. 3 and 4        d.         1  and  4
52. The function of the vaporizer of a liquid bulk oxygen system is to:
    1. act as a pressure release.
    2. reduce the pressure to 50 psig.
    3. convert liquid oxygen to gaseous oxygen.
    4. allow heat to be released into the environment.
53. The gas above liquid oxygen is maintained:
    1. between its freezing point and its critical temperature.
    2. between its boiling point and its critical temperature.
    3. at its critical pressure.
    4. at its boiling point.
54. The application of Gay-Lussac’s law in a bulk liquid oxygen system:
    1. accounts for the conversion of the liquid oxygen to gaseous oxygen.
    2. allows the reservoir contents to be maintained in the liquid state.
    3. keeps the liquid oxygen above its critical temperature.
    4. allows the gas to be maintained at 50 psig.
55. Which of the following are components of a bulk liquid oxygen system?
    1. 3AA container
    2. Insulated reservoir
    3. Pressure-release valve
    4. A heater for the liquid oxygen

a.	2 and 3	c.	2  and  4
b.	1 and 3	d.	1  and  4

56. The NFPA requires bulk oxygen systems to be located:
    1. 10 feet from flammable gas storage.
    2. 10 feet from public sidewalks.
    3. 5 feet from the property line.
    4. 5 feet from congested areas.

56. 1. 1 and 4        c.         2 , 3, and  4
    2. 2 and 3        d.         1 , 2, 3, and  4
57. According to the NFPA, for a nonambulatory patient, the minimum distance from a bulk oxygen supply is _____ feet.

a.	5	c.	25
b.	10	d.	50

58. One liter of liquid oxygen weighs _____ oz.
    1. 25    c.         86
    2. 40    d.         860
59. A home care patient inquires about how long her portable liquid oxygen system, currently weighing 30 lb, will last if she uses 3 L/min. The manufacturer says the weight of an empty container is 8 lb. Her system will last for _____ day(s) and _____ hours.
    1. 1; 18            c.         4 ;  21
    2. 2; 9  d.         8 ;  12
60. If a portable liquid oxygen reservoir is set to deliver 6 L/min and the current reservoir weight is 38 lb, it will take _____ hours for the reservoir to empty if the weight of an empty container is 10 lb.
    1. 5      c.         27
    2. 23    d.         36
61. Approximately how long will a liquid oxygen reservoir last when supplying 3 L/min to your patient? The current reservoir weight is 20 lb, and the weight of an empty reservoir is 10 lb.
    1. 19 hours      c.         46  hours
    2. 38 hours      d.         119  hours
62. During your home care visit on Monday morning, you weigh the patient’s portable liquid oxygen reservoir. The liquid oxygen weighs 18 lb, and the patient is using 2 L/min. When should you schedule a visit to fill up the reservoir?
    1. The next Monday    c.         Thursday afternoon
    2. Wednesday morning          d.         Friday afternoon
63. Which of the following types of compressor can accommodate a mechanical ventilator?
    1. Diaphragm
    2. Liquid air
    3. Rotary
    4. Piston

63. 1. 1      c.         3  and  4
    2. 2 and 4        d.         1 , 3, and  4
64. Which of the following is (are) a small nebulizer compressor(s)?
    1. Diaphragm
    2. Liquid air
    3. Rotary
    4. Piston

a.	4	c.	1  and  2
b.	1	d.	1 , 3, and  4

65. Which of the following agencies makes recommendations for medical air supply?
    1. ISO  c.         CGA
    2. NFPA           d.         Bureau of Medical Devices
66. Which of the following statements about medical air supplies are false?
    1. The air intake port must be located indoors.
    2. The source of medical air must be from the outside atmosphere.
    3. Most hospital bulk air supply systems use two compressors.
    4. Backflow through the compressors that are cycled off must be prevented manually.

66. 1. 1 and 4        c.         2  and  3
    2. 1, 2, and 3   d.         3  and  4
67. Which of the following type(s) of air compressors is (are) used in bulk supply systems?
    1. Piston
    2. Rotary
    3. Liquid air
    4. Diaphragm

a.	1 and 4	c.	1  and  2
b.	1 and 3	d.	2

68. The NFPA requires that bulk oxygen systems be at least how many feet from parked vehicles?
    1. 5      c.         15
    2. 10    d.         20
69. If the working pressure of a bulk oxygen system is 45 psig, all pressure-relief valves should be set at _____ psig.
    1. 45    c.         67
    2. 50    d.         80
70. In the event of a fire in a hospital, which of the following might be necessary?
    1. Provide supplemental oxygen to patients who require it.
    2. Shut off oxygen zone valves to the affected area.
    3. Shut off the main oxygen valve.
    4. Check oxygen line pressure.

70. 1. 3      c.         2  and  4
    2. 1 and 2        d.         3  and  4
71. Which of the following are safety features incorporated into a medical gas piping system?
    1. Zone valves
    2. Riser valves
    3. Pressure-relief valves
    4. In-line oxygen analyzers

a.	3 and 4	c.	1  and  4
b.	1 and 3	d.	1 , 2, and  3

72. Which safety system(s) is (are) found at station outlets of a medical gas piping system?
    1. Diameter Index Safety System (DISS )
    2. American Standard Safety System (ASSS )
    3. Pin Index Safety System
    4. Quick Connect

a.	1	c.	2  and  3
b.	1 and 4	d.	2  and  4

73. The type of station outlet connection that uses noninterchangeable thread fittings to connect gas-powered devices to station outlets is known as:
    1. regulator.    c.         Pin Index Safety System.
    2. quick-connect adapter.       d.         DISS.
74. Which of the following statements are true concerning station outlets?
    1. Check valves are safety valves that close automatically when an adapter is disengaged from the outlet.
    2. Station outlets do not have ASSS connections.
    3. Quick-connect adapters use noninterchangeable thread fittings.
    4. Check valves must hold a minimum of 200 psig.

74. 1. 3 and 4        c.         2  and  4
    2. 1, 3, and 4   d.         1  and  2
75. What percentage of oxygen does a typical molecular sieve concentrator provide when it is running at 2 L/min?
    1. 100%           c.         85 %
    2. 90% d.         40 %
76. Which is true about the process of fractional distillation of liquid air?
    1. Compressed air is a by-product.
    2. It produces pure liquid oxygen.
    3. Liquid nitrous oxide is produced.
    4. Concentrators use it to produce oxygen.
77. One liter of liquid oxygen is equivalent to _____ liters of gaseous oxygen.
    1. 2.5   c.         348
    2. 328  d.         860
78. Which of the following statements are true given that, on one side of a medical gas cylinder, the only markings to appear are 3 (tw) 84 + *.
    1. The cylinder passed the hydrostatic test.
    2. The cylinder must be retested after 5 years.
    3. The cylinder must be retested after 10 years.
    4. The cylinder was manufactured in March  1984.
    5. Hydrostatic testing was performed in March  1984.

78. 1. 2, 3, and 4   c.         1 , 4, and  5
    2. 2, 3, and 5   d.         1 , 2, and  4
79. Which of the following statements reflect(s) the recommendations of the NFPA and CGA for storing cylinders outdoors?
    1. Cylinders should not be stored in an area where the temperature exceeds 125° F.
    2. Cylinders must be protected from the weather.
    3. Full and empty cylinders should be kept separate.
    4. Cylinders should not be stored outside.

79. 1. 4      c.         2  and  3
    2. 1 and 2        d.         1 , 2, and  3
80. Which of the following large-cylinder safety recommendations is not appropriate?
    1. Protective caps are not necessary during storage.
    2. Cylinders should be transported with protective caps.
    3. Cylinder carts used in the operating room must be grounded.
    4. Transportation must occur on an appropriate cart, onto which the cylinder is secured by a chain.
81. Which of the following types of oxygen storage device are appropriate for home care?
    1. Manifold
    2. Compressor
    3. Concentrator
    4. Bulk oxygen system
    5. Liquid oxygen cylinder

81. 1. 2 and 5        c.         2 , 3, and  5
    2. 2 and 4        d.         1 , 4, and  5
82. Which of the following have the fastest diffusion rate through the semipermeable membrane of an oxygen concentrator?
    1. Carbon dioxide
    2. Water vapor
    3. Nitrogen
    4. Oxygen

a.	1 and 2	c.	3  and  4
b.	1 and 3	d.	2  and  4

83. The concentration of oxygen leaving an oxygen concentrator depends on the:
    1. number of sieves in the unit.
    2. number of compressors used.
    3. set flow rate of the gas exiting.
    4. size of the sodium-aluminum silicate pellets.
84. Bulk oxygen is produced through which of the following?
    1. Molecular sieves    c.         Semipermeable membranes
    2. Fractional distillation          d.         Combustion of natural gas
85. Which of the following gases is used to treat singultus?
    1. Air   c.         Nitrous oxide
    2. Oxygen        d.         Carbon dioxide
86. At –183° C, which of the following gases exists as a pale, bluish liquid that is slightly heavier than water?
    1. Air   c.         Nitrous oxide
    2. Oxygen        d.         Carbon dioxide
87. Which of the following gases may be used as a refrigerant?
    1. Oxygen        c.         Carbon dioxide
    2. Nitric oxide d.         Carbon monoxide
88. Which of the letters points to the manufacturer’s mark?

 

 

88. 1. A      c.         C
    2. B      d.         D
89. Which size cylinder is currently used for the storage of nitric oxide?
    1. 61.4 cubic feet        c.         110  cubic feet
    2. 82 cubic feet           d.         152  cubic feet
90. The cylinder color for nitric oxide is:

a.	red.	c.	teal and black.
b.	light blue.	d.	brown and green.

91. Which gas law is applied in a fusible-plug pressure-relief valve?
    1. Boyle’s        c.         Dalton’s
    2. Charles’       d.         Gay-Lussac’s
92. The American Standard System connections for all life support gases are _____-handed and _____.
    1. Left; internal           c.         Right; internal
    2. Left; external          d.         Right; external
93. Which of the following is the Pin Index Safety System pin position for oxygen?

 

 

93. 1. A      c.         C
    2. B      d.         D
94. An “E” size oxygen cylinder with 2200 psig has a set flow rate of 2 L/min. It will take _____ hours and _____ minutes until the gauge pressure reaches 400 psig.
    1. 5; 30            c.         4 ;  30
    2. 5; 6  d.         4 ;  12
95. Which of the following “E” size oxygen cylinders will last the longest?

  Pressure            Flow

   (psig)              (L/min)

a.	1600              3	c.	800                  2
b.	1400              2.5	d.	400                  1

 

96. An “H” size oxygen cylinder with 1600 psig has a set flow rate of 3 L/min. It will take _____ hours and _____ minutes to reach 300 psig.
    1. 17; 24          c.         22 ;  40
    2. 21; 25          d.         27 ;  54
97. The following figure represents the components of which of the following?

 

 

97. 1. Hydrostatic testing system c.         Fractional distillation apparatus
    2. Bulk liquid oxygen system  d.         Alternating oxygen supply system
98. Which of the following “G” size oxygen cylinders will run out of oxygen first?      Pressure       Flow

       (psig)        (L/min)

a.	700             1.5	c.	1100             2.5
b.	900             1.0	d.	1600             3.0

 

99. According to the NFPA, the minimum distance for a place of public assembly from a bulk oxygen storage system is how many feet?
    1. 10    c.         25
    2. 15    d.         50
100. Storage of a portable liquid oxygen system adjacent to a heat source will _____ the _____ of the oxygen.
     1. 1. Increase; pressure  c.         Decrease; pressure
        2. Increase; venting    d.         Decrease; venting
101. A stationary liquid oxygen system contains 80 lb of oxygen when full. A home care patient is using it 8 hours each day, during sleep, at a rate of 3 L/min. At this usage, how many days will the liquid oxygen last?
     1. 1. 6      c.         19
        2. 8      d.         27