Understanding Anesthesia Equipment Flashcards

1
Q

what does the delivery circuit help with?

A

prevents escape of gas
supports breathing for patient
reuse anesthesia and oxygen
something to remove CO2

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2
Q

what is the purpose of the anesthesia machine?

A

administer a specific amount of inhalant to get desired effect without killing the patient
make use of anesthetics somewhat predictable

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3
Q

what is used to reduce the pressure of oxygen coming out of gas cylinders?

A

regulators

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4
Q

how can oxygen go through the anesthesia machine?

A

through a flowmeter
through a flush valve

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5
Q

where does gas in the common gas outlet come from?

A

vaporizer or flush valve

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6
Q

what are the two options for getting from the common gas outlet to the patient?

A

rebreathing (circle) system
non-rebreathing system

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7
Q

what does the breathing bag allow?

A

you to breathe for patient or give patient a breath

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8
Q

does the length of the Y piece change the dead space?

A

no

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9
Q

in a rebreathing system, where is excess pressure exhaled?

A

through waste gas outlet

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10
Q

what is the bag size based on?

A

smallest bag that can hold 6 patient tidal volumes

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11
Q

how is CO2 removed in a non-rebreather?

A

oxygen flow

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12
Q

in whom is a non-rebreather used?

A

patients 2.5 kgs and under

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13
Q

what is the oxygen flow in a rebreather?

A

20-30 ml/kg/min

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14
Q

where do scavenge systems attach?

A

pop-off valve

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15
Q

how do absorbents remove CO2?

A

chemical reaction that generates heat

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16
Q

why must an active scavenge system have a buffer?

A

to prevent negative pressure being applied to the lungs of the patient

17
Q

what percentage does isoflurane vapor start at?

A

32%

18
Q

what is the pressure in gas cylinders?

A

2000 PSI for oxygen

19
Q

what do regulators reduce the pressure of oxygen coming out of the cylinder to?

A

50-60 PSI

20
Q

can the flush valve deliver anesthetic?

A

no: bypasses flowmeter and vaporizer

21
Q

does the length of the Y piece change the amount of dead space?

A

no

22
Q

what is one tidal volume?

A

10 ml/kg

23
Q

who are non-rebreather systems used for?

A

patients 2.5 kg or less

24
Q

is the volume of the non-rebreather system large or small?

A

small

25
Q

what is the oxygen flow in a non-rebreather?

A

180-300 ml/kg/min
minimum: 500 ml/min

26
Q

what is the oxygen flow in a rebreather?

A

20-30 ml/kg/min

27
Q

how does excess waste gas leave?

A

pop-off valve