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Quarter 5 > Monitoring > Flashcards

Monitoring Flashcards

(68 cards)

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1
Q

DISS

A

diameter index safety system

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2
Q

PISS

A

Pin Index Safety System

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3
Q

Diameter Index Safety System

A

connects to pipeline

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4
Q

Pin Index Safety System

A

connects to cylinders

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5
Q

pressure in gas pipeline

A

50 psi

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6
Q

Pressure in E-cylinder

A

1900-2200 psi

(745 if N2O)

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7
Q

If the oxygen cylinder valve is opened and there also pipeline pressure, will the oxygen from the O2 cylinder be used or oxygen from the pipeline?

A

cylinder (45 psig) < pipeline (50 psig)

gas will be taken from pipeline if both are open

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8
Q

Ohmeda ventilator

A

pneumatic

100% oxygen used for drive gas

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9
Q

North American Drager ventilator

A

pneumatic

33% Oxygen entrained with room air via venturi system

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10
Q

Datex fail-safe

A

pressure shut-off valve (PSSV)

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11
Q

fail-safe

A

prevents delivery of hypoxic mixture

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12
Q

PSSV

A

Pressure Sensor Shut-off Valve

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13
Q

Pressure Sensor Shutt-off Valve

A

when O2 supply is less than 20 psig, the valve closes and shuts off other gases

  • upstream from 2nd stage regulator
  • Datex
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14
Q

Draeger fail safe

A

O2 Failure Protection Device and O2 Ratio Monitor Controller (ORMC)

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15
Q

OFPD

A

Oxygen Failure Protection Device

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16
Q

O2 Failure Protection Device (OFPD)

A

gradually reduces other gases until O2 supply is below 12+/- 4 psig

  • based on proportioning
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17
Q

****

A
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18
Q

ORMC

A

O2 Ratio Monitor Controller

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19
Q

O2 Ratio Monitor Controller (ORMC)

A

O2 resistor is 3-4x that of N2O resistor, if diaphragm falls, a hypoxic mixture can be given

  • Drager
  • similar to link 25
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20
Q

If there is a loss of oxygen pipeline pressure, which flow meter bobbin will go down first, oxygen or nitrous?

A

Nitrous

assuming fail-safe is working properly

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21
Q

What kind of leaks do you test for with a positive pressure leak test?

A

leaks between CGO and patient’s circuit

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22
Q

What is the most common cause of leaks inside the machine (prior to the common gas outlet)?

A

partially open filler ports for the vaporizers

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23
Q

What is the dead space in the circle system and what valves minimize this dead space?

A

Dead space is bidirectional flow. The inspiratory and expiratory valves help prevent two way flow/dead space

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24
Q

What happens if you have tear in the bellows?

A
  • bellows wont rise
  • anesthetic agents may be diluted by drive gas
  • FGF will be more diluted with O2
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25
Why is the manual breathing bag located on the expiratory limb and not on the inspiratory limb of the circle system?
To prevent rebreathing of expired gas. Exhaled gas goes to manual rebreathing bag and through the CO2 absorber before returning to the inspiratory limb in the circle breathing system. Expiratory one way valve prevents expired gas in expiratory limb from going back to patient.
26
how do you change a semi-closed system to a closed system?
remove scavenging
27
Why do you need a negative pressure relief valve?
The negative pressure relief valve prevents negative pressure in the scavenging system from being applied to the patient. * Negative pressure can occur when there is maximum suction and the APL valve is open or negative pressure relief valve fails.
28
when does the negative pressure relief valve open?
-5 cmH2O
29
When does the positive pressure relief valve open?
10 cmH2O
30
Other name for Mapleson A
Magill or Lack
31
Mapleson A [uses]
spontaneous ventilation during general anesthesia
32
Mapleson A [FGF for spontaneous]
70 - 100 mL/kg/min
33
Mapleson A [FGF for positive pressure]
3x minute ventilation
34
Mapleson B [uses]
spontaneous or controlled ventilation
35
Mapleson B [FGF for spontaneous]
20-25 L/min or 2x minute ventilation
36
Mapleson B [FGF for positive pressure]
2 - 2.5x minute ventilation
37
Mapleson C [uses]
resuscitation
38
Mapleson C [FGF for spontaneous]
2x minute ventilation
39
Mapleson C [FGF for positive pressure]
2 - 2.5x minute ventilation
40
Mapleson D [other names]
Bain
41
Mapleson D [FGF for spontaneous]
100 - 300 ml/kg/min
42
Mapleson D [FGF for positive pressure]
70 - 100 ml/kg/min | (100-240 achieves equal ETCO2)
43
Mapleson E [other names]
Ayers T-piece
44
Mapleson D [uses]
spontaneous IPPV or general anesthesia * ease of scavenging gases
45
Mapleson E [uses]
spontaneous only
46
Mapleson E [FGF for spontaneous]
3.5x minute ventilation
47
Mapleson F [other names]
Jackson Reese
48
Mapleson F [uses]
pediatrics less than 25 kg
49
Mapleson F [FGF for spontaneous and positive pressure]
2.5 - 3x minute ventilation | (minimum 4 L/min)
50
Mapleson A
51
Mapleson B
52
Mapleson C
53
Mapleson D
54
Mapleson E
55
Mapleson F
56
ventilator [Draeger Fabius]
piston
57
Advantages of Piston ventilator
no drive gas and shorter time constant
58
scavenging system [Draeger Fabius]
open active
59
modes of mechanical ventilationo [Draeger Fabius]
PCV, VCV, and pSV
60
O2 Flush [Draeger Fabius]
no fresh gas coupling no risk of barotrauma
61
What happens when you unplug the wall oxygen source? [Draeger Fabius]
* low oxygen supply alarm * mechanical ventilation still works but does not pass through vaporizers
62
ventilator [Ohmeda Aysis]
pneumatic
63
advantages of pneumatic ventilator
patient cannot recieve a hypoxic mixture if there is a leak in the bellows (pure oxygen)
64
disadvantages of pneumatic ventilator
dependent on pipeline or cylinder oxygen drive
65
scavenging system [Ohmeda Aysis]
closed active
66
O2 flush [Ohmeda Aysis]
small risk of volutrauma, but pressure will not go above set inspiratory pressure limit
67
what still works when the [Ohmeda Aysis] is unplugged
monitors do not work
68

Quarter 5 (8 decks)

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