Neuro II Flashcards
phenobarbitol
barbituate
pentobarbital
barbituate
thiopental
barbituate
secobarbital
barbituate
barbiutate
facilitate GABA-A action
-increased DURATION of Cl- channel opening
decrease neuroin firing
bArbituAte - durAtion
adverse barbituate
resp/cardiac depression
P450 inducer
OC - supportive tx
chlordiazepoxide
benzodiazepine
benzodiazepine
faciliate GABA-A activityion
-increase FREQUENCY of Cl- channel opening
bEnzo - frEquEncy
short acting benzos
ATOM
alprazolam
triazolam
oxazepam
midazolam
higher risk of addiction
adverse benzos
dependence
CNS depression - with alcohol
tx OD benzos
flumazenil
flumazenil
competitive antagonist at GABA benzo receptor
zolpidem
non-benzo hypnotic
zaleplon
non-benzo hypnotic
eszopiclone
non-benzo hypnotic
non-benzo hypnotics
activia BZ1 subtype GABA receptor
effect - reversed by flumazenil
MAC
minimal alveolar concentration
-to prevent 50% subjects response to painful stimuli
measure of potency
anesthetic decreased solubility in blood
rapid induction and recovery
anesthetic increased solubility in lipid
increased potency
nitrous oxide
low blood and lipid solubility
-fast induction - low potency
halothane
high blood and lipid solubility
-slow induction - high potency
halothane
inhaled anesthetic
unknown MOA
enflurane
inhaled anesthetic
unknown MOA
isoflurane
inhaled anesthetic
unknown MOA
sevoflurane
inhaled anesthetic
unknown MOA
methoxyflurane
inhaled anesthetic
unknown MOA
N2O
inhaled anesthetic
unknown MOA
malignant hyperthermia
with inhaled anesthetic and succinycholine
hyperthermia and muscle contraction
tx - dantrolene
tx malignant hyperthermia
dantrolene - acts on RyR
thiopental metabolism
terminated action
-by REDISTRIBUTION to tissues
tx OD benzo
flumazenil
midazolam
MC drug for anesthesia during endoscopy
ketamine
arylcyclohexylamine
PCP analog - dissociative anesthetic
block NMDA receptor
cardiovasc stimulant
-disorientation, hallucinations, bad dreams
propofol
for sedation in ICU
-rapid anesthesia induction
potentiate GABA-A
procaine
ester local anesthetic
cocaine
ester local anesthetic
tetracaine
ester local anesthetic
lidocaine
amide local anesthetic
mepivicaine
amide local anesthetic
bupivicaine
amide local anesthetic
local anesthetic
block Na channels
-bind receptors on inner portion of channels
prefer bind activated Na channels
sometimes given with vaosoconstrictor - epinephrine
infected acidic tissue
need more anesthetic
order of nerve blockade speed
small diameter faster
myelinated faster
size over myelination
small myelinated > small unmyelinated > large myelinated > large unmyelinated
order of loss with local anesthetic
1 pain
2 temp
3 touch
4 pressure
adverse benzocaine
methemoglobinemia
adverse bupivicaine
cardiovascular toxicity