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PHARMA > inhalation anaesthetics > Flashcards

inhalation anaesthetics Flashcards

0
Q

among the 3 inhalation anaesthetics which one has PUNGENT taste

A

methoxy-flurane

other 2 have sweetish

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1
Q

name 3 main inhalation anaesthetics

A
  1. halo-thane
  2. ether
  3. methoxy-flurane
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2
Q

MAC% of the 3 inhalation anaesthetics

A

halothane=0.75-1.20
ether=3
methoxy-flurane=0.23

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3
Q

among the 3 inhalation anaesthetics, which one is LEAST POTENT

A

ether(MAC%=3)

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4
Q

among the 3 inhalation anaesthetics, all CNS depression stages are seen in which one?

A

ether

in other 2,stage II is bypassed

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5
Q

among the 3 inhalation anaesthetics, which one sentitizes heart to catechol-amines

A

ether

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6
Q

among the 3 inhalation anaesthetics, which one causes myocardial depression

A

halo-thane

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7
Q

among the 3 inhalation anaesthetics, which one is hepatotoxic like chloroform

A

halo-thane

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8
Q

among the 3 inhalation anaesthetics, which one causes oliguria/anuria

A

ether

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9
Q

among the 3 inhalation anaesthetics, which one causes both hypo & hyperthermia

A

halothan

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10
Q

all the 3 inhalation anaesthesia, except halothane cause _______thermia

A

HYPO

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11
Q

relation of halothane and body temperature

A

hyperthermia=pig,horse

hypothermia=others

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12
Q

why halothane causes hyperthermia in pig & horse

A

persistent muscle contraction due to release of Ca from sarcoplasmic reticulum

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13
Q

what is the affect of inhalation anaesthetics on uterus?

A

reduce uterine contractions

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14
Q

among the 3 inhalation anaesthetics,which one does NOT cause vomit?

A

halo-thane

in other 2, vomitation is common

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15
Q

among the 3 inhalation anaesthetics, which one is safest?

A

ether

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16
Q

among the 3 inhalation anaesthetics, which one has rapid induction?

A

halothane

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17
Q

among the 3 inhalation anaesthetics, which one is most POTENT

A

methoxy-flurane

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18
Q

which drug is contraindication, in case of the 3 main INHALATION ANAESTHETICS

A

aminoglycoside antibiotics

19
Q

MAC stands for

A

minimum alvelar concentration

20
Q

MAC measures the ___________________

A

potency of inhalation anaesthetics

21
Q

classification of inhalation anaesthetics

A
  1. volatile anaesthetics

2. anaesthetic gases

22
Q

name 3 major volatile anaesthetics

A
  1. ether
  2. halothane
  3. methoxyflurane
23
Q

name other minor volatile anaesthetics

A

en-flurane
iso-flurane
chloroform

24
Q

name the 2 main anaesthetic gases

A

nitrous oxide

cyclopropane

25
Q

enflurane is chemically related to which major volatile anaesthetic

A

methoxy-flurane

26
Q

name the most frequently used potent anaesthesia in human surgery

A

en-flurane

27
Q

en-flurane is classified as _________ anaesthetic

A

convulsive

28
Q

enflurane causes CNS excitation or depression

A

excitation

29
Q

isoflurane is _________ times more potent than enflurane

A

1.5

30
Q

isoflurane causes CNS excitation or depression

A

depression(unlike enflurane)

31
Q

chloroform causes death due to __________

A

toxic effect on heart

32
Q

what is the toxic effect of chloroform on heart

A

ventricular fibrillation—-cardiac arrest

33
Q

chloroform is oxidised to ________ in air

A

phosgene

34
Q

how can we prevent oxidation of chloroform?

A

by adding ethyl alcohol @ 1%

35
Q

MAC values of ENFLURANE & ISOFLURANE

A 
enflurane= 2.12%
isoflurane= 1.3%
36
Q

laughing gas is chemically known as ________

A

nitrous oxide

37
Q

nitrous oxide was discovered by _______

A

joseph priestly

38
Q

why is NO known as laughing gass

A

it causes

  • amnesia
  • delirium
  • excitement
39
Q

NO has good ______ effect

A

analgesic(all other effects are poor)

40
Q

cyclopropane is diluted with oxygen ____ times

A

4

41
Q

ether oxidises to ______ on exposure to moisture

A

peroxides

42
Q

how to prevent decomposition of halothane

A

by adding thymol

43
Q

how to prevent decomposition of methoxyflurane

A

butylated hydroxy-toulene

44
Q

Out of the three main volatile anaesthetics,which one is used for lab animals or euthanasia

A

Ether

PHARMA (10 decks)

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