Brainscape's Knowledge GenomeTM

Browse over 1 million classes created by top students, professors, publishers, and experts.


See full index

P&P Fall 2019 > Ex2 Anesthesia Gas Machine 2 > Flashcards

Ex2 Anesthesia Gas Machine 2 Flashcards

1
Q

Ultimate destination of gases

A

Patient

*not scavenging system

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

DISS (diameter index safety system)

A

Coupling mechanism: connects end of hose + appropriate gas outlet

  • color coded
  • to prevent incorrect hose to hospital gas pipeline
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

PISS (pin index safety system)

A

2 holes in cylinder valve (E-cylinder) that correspond to pins in yoke (anesthesia machine)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

O2 Pin index position

A

2+5

Green

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

Air Pin Index Position

A

1+5

Yellow

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

NO2 Pin Index Position

A

3+5

Blue

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

If complete loss of pressure occurs, what should you do?

A

Open O2 E cylinder
Manually ventilate
Disconnect pipeline (prevent retrograde flow)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

What is the first thing you should look at if machine goes out?

A

Circuit breaker (back on machine)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

Hanger yoke

A

Orients cylinders, prevents gastight seal

Ensures unidirectional flow

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

Minimizes likelihood of transfilling/leaking to atmosphere in cylinders

A

Check valve (within hanger yoke)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

Cylinder regulator

A

Converts E-cylinder pressure to 45 psi

Distal to hanger yoke

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

Bourdon-type pressure gauges are ______

A

Aneroid gauges - compare pressure to barometric pressure

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

All gases (except O2) flow through what before proceeding through flowmeters?

A

Fail-safe valve

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

Location at which gases join for first time

A

Common manifold

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

After gases pass thru vaporizer where do they go?

A

Common gas outlet

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

Circle system is a _____

A

Semi closed

Low FLOW

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
17
Q

How many grooves on oxygen knob?

A

8

45*

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
18
Q

If using oxygen flush valve to fill bellows, how should you use it

A

Short burst during expiratory phase

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
19
Q

Pt receives .25 mL/min flowmeter, how much FiO2?

A

100%

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
20
Q

Low pressure alarm

A

Pressure is lost in O2 circuitry
Datex = <28psi
Drager = <37 psi

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
21
Q

Modern vaporizers

A

Variable-bypass

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
22
Q

Function of concentration control valve

A

Regulate amount of flow thru the bypass/vaporizing chambers

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
23
Q

Splitting ratio

A

Flow thru vaporizing chamber/flow thru bypass chamber

24
Q

Unique aspect of Desflurane vaporizer

A

Heated - dual circuit
“Datex ohmeda Ted 6”
(Near boiling temp at room temp)

25
Q

Interlock system ensures

A

Only one vaporizer can be on at a time

26
Q

What if vaporizer says “tipping”?

A

Don’t use it - tipped > 45*

27
Q

Factors that influence vaporizer output

A
  1. Flow rate (O2 flush bypasses vaporizer, so dilutes gas)
  2. Temperature
  3. Back pressure (high PEEP=higher vaporizer output)
  4. Atmospheric pressure (changes volume%)***
  5. Carrier gas
28
Q

Vaporizers and carrier gas

A

Calibrated for 100% oxygen

29
Q

Addition of N2O will result in _____ MAC

A

Lowered

30
Q

Dead space ends at

A

Y-piece of circuit (where inspiratory/expiratory gases diverge)

31
Q

APL valve

A

Releases gases to scavenging system

Provide control of pressure in breathing system

32
Q

Bag mask ventilation - APL valve should be

A

Left partially open

33
Q

Mechanical ventilation - APL valve should be

A

Excluded (selector switch on ‘automatic’)

34
Q

Main reason for APL valve

A

Positive pressure during manual ventilation

35
Q

Advantage of circle system

A

Prevents rebreathing of CO2 while allowing rebreathing of all other gases

36
Q

If increased inspired/exp CO2

A

Increase FGF to 5-8L/min (semi-open)

37
Q

ETCO2 waveform: prolonged plateau, slanting inspiratory downstroke

A

Incompetent inspiratory valve

38
Q

What makes rebreathing of gases possible?

A

Carbon dioxide absorption

39
Q

Which absorbant must be used with FiCO2 monitoring?

A

Spiralith (no color indicator)

40
Q

Which absorbant stays indicator color permanently?

A

Litholyme

41
Q

Which absorbent does not have a color indicator?

A

Spiralith

42
Q

How do you prevent wall effect/channeling in absorbent?

A

Shaking canister

43
Q

Cons to barolyme

A

Burning skin/contacts

44
Q

Water content of most absorbents

A

15%

45
Q

Which absorbent does not have water content?

A

Spiralith

46
Q

Importance of water content in absorbent

A

Produces compound A, carbon monoxide, all negative effects

47
Q

Mesh size of most absorbents

A

1/4-1/8”

48
Q

Significant indicator of CO2 absorbent exhaustion

A

Dysrhthmias or increased bleeding

49
Q

End stage renal failure pt should not receive

A

Sevo — d/t risk of Compound A

50
Q

Risk of Desflurane

A

Carbon monoxide

51
Q

Exposure max of halogenated agents

A

2 ppm (0.5 ppm if+N20)

52
Q

Exposure max N2O

A

25 ppm (based on 8hrs)

53
Q

Closed interface system

A

Scavenger system - communicate to atmosphere only thru valves

  • used w/ passive disposal system (no suction)
  • can be used w/ active - change interface
54
Q

Open interface

A

Scavenging system
No valves
Active (suction)

55
Q

Difference between closed and open scavenging systems

A 
Closed = valve
Open = no valves (+active)

P&P Fall 2019 (17 decks)

Brainscape helps you reach your goals faster, through stronger study habits.
© 2024 Bold Learning Solutions. Terms and Conditions