Brainscape's Knowledge GenomeTM

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


See full index

Anesthesia Machine > Previous Test > Flashcards

Previous Test Flashcards

1
Q

The complete FDA anesthesia machine checkout should be done….

A

Before the first case of the day

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

An E cylinder of O2 showing a pressure of 1000 PSIg will last approx. how long at a 5 L/min flow

A

60 mins. 660L/2200PSI = X/1000PSI X = 300 L 300/5 = 60 mins

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

Which of the following is NOT part of the low pressure system? A. Vaporizer B. common gas outlet C. O2 low pressure alarm D. Flow meter tubes E. floats

A

C. Low pressure O2 alarm

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

If you are in PSV mode and your patient is taking tidal volumes of 1100ml/breath with a pressure level of 15cmH2O and you want the tidal volume closer to 700 ml/breath then what should you adjust on the ventilator?

A

Decrease the pressure support level

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

When you increase the tidal volume from 750 to 1000 ml as well as increase your respiratory rate from 8 to 10 bpm, what will be the new minute ventilation?

A

10 lpm

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

Given a datex-ohmeda excel machine that has the following controls: tidal vol., RR, inspiratory flow rate, inspiratory pressure limit, inspiratory pause. If all other controls remain set, what occurs when the inspiratory pause button is depressed?

A

The expiratory time is decreased

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

While in VCV you change the RR from 10 to 20 bpm while keeping the peak flow rate constant, what do you expect to increase?

A

Peak inspiratory pressure

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

Which of the following statements can be correctly associated with the pumping effect?

A

Most pronounced at low concentration settings and causes a higher concentration of agent to be delivered with positive pressure

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

The N2O cylinder pressure reads 372 PSIg. You assume that

A

The tank is almost empty

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

Minute ventilation is a product of

A

RR and TV

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

Desflurane requires a heated vaporizer because

A

Heat energy from the room is insufficient to fuel its vaporization during use

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

Which cylinder has greatest volume?

A

H

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

Which mode is best to control the pressure exerted on the alveoli, but maximize tidal volume delivered?

A

PCV

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

Which of the following is NOT part of the intermediate pressure system? A. Vaporizer B. o2 fail safe device C. Low pressure O2 alarm D. N2O second stage pressure regulator E. pipeline pressure gauge

A

Vaporizer

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

The term “silent depletion” refers to

A

An E cylinder left open that slowly empties when e pipeline drops below regulated cylinder pressure

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

The output of an isoflurane vaporizer operated in Denver will have what relationship to the same vaporizer in Atlanta?

A

The Denver one may deliver a higher concentration than intended

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

What is the percent sevoflurane when fresh gas flow is 1L? (Carrier gas flow is 50ml)

A

1.3%

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

You are administering 1 lpm nitrous and 1 lpm oxygen using an older datex-ohmeda machine. Sudden loss of pipeline pressure. Fail safe activates. Back ups turned on. What happens to the floats?

A

The drop then rise to previous values

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

A hypothetical compressed gas called nitroair contain 50% N2O and 50% air. What color would the cylinder be?

A

Yellow and blue.

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

What is “auto-PEEP”

A

Pressure build up in the lungs that occurs when there in insufficient time for expiration.

21
Q

Which of the following will not have any effect on the splitting ratio in a variable bypass vaporizer?

A

Barometric pressure

22
Q

Changing only the I:E ratio from 1:1 to 1:4 will effect ventilation by

A

Increasing the inspiratory flow rate

23
Q

All of the following are a benefit of application of positive end expiratory pressure except which of the following? A. Increases FRC B. Increases intrathoracic pressure C. Recruits collapsed alveoli D. Redistributes lung fluid E. splints and distended patent alveoli

A

B. increases intrathoracic pressure

24
Q

While in PCV you change I:E from 1:2 to 1:4 which of the following parameters will increase with this change?

A

Expiratory time

25
Q

Which of the following anesthetic agents has the lowest vapor pressure at 20 degrees C?

A

Sevoflurane

26
Q

Depressing the O2 flush valve while the machine is turned off

A

Results in an O2 flow of 35-75 lpm to the common gas outlet

27
Q

Given a large university medical center of 700 beds, which of the following piped gases are most likely to be provided from banks of cylinders.

A

Nitrous oxide

28
Q

Mandatory safety features of current anesthesia machines include all of the following except A. O2/N2O proportioning system B. compresses gas assoc. standard fittings C. O2 flowmeter at extreme right of flowmeter cluster D. Locking common gas outlet E. vaporizer interlock device

A

Compressed gas assoc. standard fittings

29
Q

What happens when a patient starts to take a spontaneous breath while in PCV?

A

The breath will be unassisted

30
Q

What do you expect to happen when you change from PCV with and inspiratory pressure of 20 to VCV with a plateau pressure of 20 given the pulmonary compliance remains constant?

A

Decrease tidal volume

31
Q

In a modern vaporizer, the splitting ratio will be altered such that a higher percentage of gas flows into the vaporizing chamber if the following situation occurs

A

The temperature of the agent decreases

32
Q

If an E cylinder is empty, the pressure in the cylinder is

A

14.7 PSIa

33
Q

What is a measure of the mean pressure being exerted on the alveolar wall during a mechanical breath?

A

Plateau pressure

34
Q

Which government agency is responsible for regulating medical gas cylinders and containers in the US?

A

Dept. of Transportation

35
Q

Changing only the I:E from 1:4 to 1:1 would have the following effect

A

Would increase the “auto-peep”—less time to exhale

36
Q

Most modern vaporizers are classified as

A

Variable bypass, flow over, temperature compensated, agent specific, out of circuit

37
Q

What information is obtained when performing an inspiratory hold maneuver during VCV?

A

Pressure exerted in alveoli

38
Q

PISS prevents what

A

Incorrect gas cylinder connections to machine

39
Q

Which of the following is not a step in anesthesia machine checkout A. Verify backup ventilation B. verify backup N2O C. Verify backup O2 D. Proper functioning unidirectional valves E. calibrate O2

A

Verify N2O

40
Q

Which of the following is least potent Sevoflurane Desflurane Isoflurane

A

Desflurane

41
Q

Each of the following modes could result in breath stacking except SIMV CMV IMV VCV

A

SIMV

42
Q

At the end of an anesthetic, with the inhalation all agent and fentanyl being delivered, it is desirable to have the patient breathing spontaneously. Which mode of ventilation would you prefer?

A

PSV

43
Q

If the O2 pressure drops to 10 PSI, in what order will things happen

A

Alarm sounds, device activates, N2O stops

44
Q

What system prevents the wrong gas supply hose from being attached

A

DISS

45
Q

In PCV, you want to increase the tidal volume because the sats fell. What could you do?

A

Increase pressure control settings

46
Q

Will the O2 flush valve dilute the concentration of anesthetic delivered?

A

Yes

47
Q

What is a “stacked breath”

A

Unsynchronized ventilator breath delivered immediately after a full patient inspiration

48
Q

Pouring sevoflurane into an isoflurane vaporizer will

A

Significantly lower concentration than displayed on dial

Anesthesia Machine (5 decks)

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