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Flashcards in General Anesthetics Deck (34):
1

List all the inhaled anesthetics

N2O
halothane
enflurane
isoflurane
desflurane
sevoflurane
methoxyflurane
HIS MED

2

List all the IV anesthetics

barbituates
propofol
ketamine
etomidate

3

Define the MAC

concentration that results in IMMOBILITY in 50% of paitents when exposed to a noxious stimulus such as surgical incision
IMMOBILITY MAC

4

Low MAC = ?
high MAC = ?

low MAC (requires little of the substance to make people not move when they feel pain) = potent`
high MAC = low potency

5

how do you measure the potency of an anesthetic?

liposolubity ie a high oil:gas partition coefficient bc htat means more of it is lovin the fatty oil

6

Two measurements of potency adn their relationship

increased oil: gas = low MAC = POTENT

7

blood:gas parittion coefficient measures?

latency to onset
HIGH - later onset

LOW - quicker onset

8

anesthetics with a large oil:gas have a large blood:gas

yep. thats a thing.

9

how does ventilation affect arterial tension of anesthetic

if have a low blood:gas then will cause only slight increased in arterial tension

if have a high blood: gas then will cause a sig increase in arterial tension

10

What determines the ateriovenous concentration gradient?

depents on the uptake at the tissue, and slows down the onset

11

Elimination for low blood and tissue solubility

mirrors anesthetic: easy transport in and out

12

elimination for high blood and tissue solubility

depends on duration of anesthetic - bc gotta get ride of all the anesthetic in the blood and tissues that has been shoved in there the whole time

13

~*~Which inhaled anesthetics cause decreased BP due to affects on myocardium

halothane
enflurane

14

~*~Which inhaled anesthetisc cause decreasedp BP due to affects of TPR?

isoflurane
desfulrane
sevoflurane

15

~*~Which inhaled anesthetics are preferred in peopel with heart problems?

isoflurane
desflurane
sevoflurane

bc dont affecy myometrium

16

Who is pungent?

Isoflurane and Desfluraose

DES Is so pungent

17

Who is not pungent

halothane
sevoflurane
NO

18

Most likely to cause respiratoroy depression

isofulrane
enflurane

the vowels cause respiratory depression

19

Who causes tonic clonic movements

enflurane

20

hepatotoxicity

halothane

21

nephrotoxicity

methoxyflurane

22

causes malignant hypertension

succinylchline and halothane

23

treat my malignant hypetension

dantrolene

24

hematotoxicity

N2O - decreases methionine synthase activity = megalblastic anaemia

DENTISTS

25

what is used for induction fo anesthesia AND short surgical procedures

thiopental
methohexital

ultra short acting barbituates

26

describe effects of the ultrashort acting barbiturates

decreased ICP
do not produce analgesia
cause hyperalgesia

27

tell me abotu propofol

antiemetic
induction and maintenenace of analgesia
potent respiratory depression (iso and enflurane)

reduced ICP
causes hypotension via PVR

28

Who cares abtou Etomidate

used for anesthetic induction at patients at risk of hypotension

minimal cardio and resp

no analgesic

decreases ICP

n/v

inhibit steroidogenesis

decreases plasma hydrocortisone

29

ketamine

increased ICP

EMERGENCE PHENOMENA: causes sensory and perceptual illusions = treat with diazepam, midazolam, propofol

30

How do I make neurolept analgesia happen?

with fentanyl - shor acting opiod and droperidol

31

how do i man neurlept analgesia become anesthesia

fentanyl and droperidol TH`EN add N2P in )2

32

why would we add in some benzo?

to forget the horrors

no anxiety and anterograde amnesia

33

what would you give so people donet puke?

oh-danse-etron

34

what benefits would scopolamine offer?

antimuscarinic ;)

amnesia - forget it all wtih benzos

no salivation no bronchial secretions

protect heart from bradycardia