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anesthesia > inhalant agents > Flashcards

inhalant agents Flashcards

0
Q

MAC

A

Potency

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1
Q

how is concentration of anesthesia in the body changed

A

adjusting the delivered concentration to the patient

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2
Q

how are inhalants eliminated

A

by lungs with minimal metabolism

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3
Q

what is the max exposure of inhalants to people

A

2ppm

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4
Q

what is more expensive, inhalant or injectable

A

inhalants

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5
Q

what color are oxygen tanks

A

green

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6
Q

what does an E tank contain

A

2200psi, 660 L

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7
Q

what does an H tank contain

A

2200psi, 6600 L

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8
Q

what used to be the most widely used anesthetic but is now outdated

A

diethyl ether

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9
Q

advantage of mask induction

A

easy if dosile and calm

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10
Q

what is low partition coefficient

A

rapid induction and recovery along with rapid response to changes in concentration during maintenance

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11
Q

what will maintain moderate surgical anesthesia

A

1.5xMAC

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12
Q

what does low MAC

A

high potency

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13
Q

values of ideal agent

A

low VP, low SC, low MAC

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14
Q

inhalant of choice for cardiac pts.

A

isoflurane

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15
Q

when might hypoxia be observed

A

exhausted co2 canisters

16
Q

sevoflurane values

A

high VP, extremely low SC, 2.34-2.58 MAC

17
Q

what can cause renal damage in rats

A

sevoflurane

18
Q

2-5% biotransformation

A

sevoflurane

19
Q

what has the lowest SC and is called “one breath anesthesia”

A

desflurane

20
Q

7.2-9.8 MAC

A

desflurane

21
Q

0.02 biotransformation

A

desflurane

22
Q

20-46 biotransformation

A

halothane

23
Q

what preservative may cause residue buildup with halothane

A

thymol

24
Q

what is associated with malignant hyperthermia

A

halothane

25
Q

what is halothane most likely to cause

A

cardiac arrhythmia’s in dogs

26
Q

what should not be used in pigs

A

halothane

27
Q

what uses a “wick” vaporizer

A

methoxyflurane

28
Q

what is nitrous oxide stored in

A

blue cylinders

29
Q

what does nitrous oxide do the the MAC of other anesthetics

A

reduces by 20-30%

30
Q

when should nitrous oxide not be used

A

intestinal obstruction,GDV, pneumothorax, and equine pts

31
Q

what is common with nitrous oxide

A

diffusion hypoxia

32
Q

what cant be used with low o2 flow rates (closed systems)

A

nitrous oxide

33
Q

what is the constant N2O pressure

A

745 psi; will not decrease till almost empty

34
Q

how much N2O can be delivered

A

no more than 70%

35
Q

how little oxygen can be delivered with N2O

A

no less than 30%

anesthesia (12 decks)

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