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EQUIPMENT > TEST ONE > Flashcards

TEST ONE Flashcards

1
Q

Minimum thickness for a gas cylinder

A

0.26 inches

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2
Q

E cylinder of oxygen capacity is ______ L

A

660 L

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3
Q

E cylinder capacity of NO is _______ L

A

1590 L

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4
Q

________ plug offers protection from excessive pressure from high temperatures, but not from overfilling.

A

Fusible plug

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5
Q

Protects against excess pressure from high temp or overfilling

A

Rupture disc

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6
Q

Cylinders must be inspected every ____ years

A

5 yrs

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7
Q

Safety systems help avoid incorrect gas connections and include?

  1. _______
  2. _______
  3. _______
A

Color coding
Pin indexing
Diameter indexing

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8
Q

Oxygen should be changed @ _______ psi

A

1000 psi

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9
Q

Full cylinder pressure for oxygen is ______ psi

A

2200 psi

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10
Q

Full cylinder pressure for air is _______ psi

A

2200 psi

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11
Q

Full cylinder pressure for nitrous is _______ psi

A

745-750 psi

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12
Q

_________ are used to deliver nonflammable gases such as oxygen, NO, air, carbon dioxide, and nitrogen.

A

Pipelines

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13
Q

Central supply or pipeline stores of oxygen may be stored as _______ liquid at low pressures or as _______ gas in cylinders

A

Cryogenic liquid

Compressed gas

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14
Q

Most common contaminant of medical gas lines

A

Water

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15
Q

Purity of _______ ________ is specified in the US pharmacopeia and enforced by the FDA

A

Medical gases

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16
Q

Have published standards regarding cylinders

  1. _____
  2. _____
  3. _____
A

Department of transportation (DOT)
National fire protection association
Compressed Gas Association

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17
Q

Most common cause of leak in new cylinder

A

A missing or defective washer

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18
Q

Pipeline connections to the anesthesia machine use this to prevent incorrect connections

A

Diameter index safety system DISS

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19
Q

Cylinder gas is reduced to _____ psi by regulator upon entering machine

A

50 psi

20
Q

Hazards in pipeline systems include
1.
2.
3.

A

Leaks
Fires
Cross-connections

21
Q

Pipeline alarms indicate is the pressure increased or decreases ______% from normal.

A

20%

22
Q

Anesthesia workstations and their components are covered by what society?

A

American Society for Testing and Materials (ASTM)

23
Q

Computer-drive machines should be turned off and restarted very ____ hrs. (Self checkout )

A

24 hrs

24
Q

Only ________ monitors should be plugged into machine’s electrical outlets

A

Anesthesia monitors

25
Q

Backup battery power is at least ______ minutes

A

30 minutes

26
Q

When gas travels from high-pressure cylinder to the machine, a pressure regulator decreases pressure to _______ psi

A

50 psi

27
Q

This orients and supports the cylinder, provides a gas-tight seal and ensures unidirectional flow.

A

Hanger yoke

28
Q 
Components exposed to high pressure include:
1.
2.
3.
4.
A

Hanger yoke
Cylinder pressure gauge
Cylinder pressure regulators
yoke block with check valves

29
Q

Allow gas to enter the machine but prevent gas from exiting the machine when there is no cylinder in the yoke

A

Check valves

30
Q

These gauges are metal needles which stretch with pressure and point to the correct pressure in the cylinders/pipelines

A

Bourdon gauges

31
Q

Pneumatic components of the intermediate pressure system include:
1.
2.
3.

A

Master switch
Oxygen failure devices
Flow control devices

32
Q 
Accessories supplied by oxygen include:
1.
2
3
4
A

Ventilators
Accessory flowmeters
Jet ventilation
Oxygen flush

33
Q

_________ buttons direct a high unmetered flow directly to the common gas outlet (35-75L/min) and do not require activation of the master switch

A

Flush buttons

34
Q 
Flush hazards include:
1.
2.'
3.
4.
A

Leaks
Obstructing flow meter output
Barotrauma
Awareness

35
Q

Machines possess a pneumatic or electronic alarm device that sounds a warning when the oxygen supply pressure decreases below ______psi

A

30 psi

36
Q

This will decrease supply pressure of other gases as the oxygen supply pressure decreases (below 20-25psi)

A

“Fail-safe valve” (oxygen pressure sensor shutoff valve)

37
Q

Reducing devices just upstream of flow valves that decrease pressure a second time to ______psi

A

15-19

38
Q 
Machine components exposed to low pressure system include:
1.
2.
3.
4.
A

Flow meter tubes
Vaporizers
Check valves
Common gas outlet

39
Q

The most common means of regulating flowmeter rate is a _______ valve

A

Needle valve

40
Q

Traditional flowmeters that are vertical glass tubes tapered with its smaller diameter at the bottom

A

Thorpe tubes

41
Q 
Physical properties of the gas affects the flowmeter indicator and include :
1.
2.
3.
4.
A

Viscosity
Density
Weight
Float and annulus of the tube

42
Q

Flowmeters are color coded and the flow-control know for _______ is larger and shaped differently

A

Oxygen

43
Q

Bobbin flowmeters are read from the TOP/BOTTOM.

A

TOP

44
Q

Ball floats are read from the TOP/MIDDLE/BOTTOM

A

MIDDLE

45
Q

Factors affecting flowmeter accuracy include :
1.
2.
3.

A

Back pressure from a ventilator
Static electricity/dirt
Float stuck at the top of the Thorpe tube

46
Q

The common gas outlet should NOT be used to administer supplemental oxygen to the patient. TRUE/FALSE?

A

TRUE

EQUIPMENT (2 decks)

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