Anesthesia- Khalil and Wyatt Flashcards
(21 cards)
Capnography
Monitors end tidal CO2
Volatile anesthetics examples
Isofllurane, sevoflurane, desflurane
Uses of volatile anesthetics
vaso and bronchodilation
good for asthmatics, COPD, and restrictive airway diseases
Volatile anesthetics affected by
Resp rate, CO, gas flow from anesthesia machine
MAC Bar
deepest level of anesthesia, lack hemodynamic response to incision
laryngeal mask airway
not true secure airway- can’t use w GERD, obesity, full stomachs, nausea
Moa of spinal
block transmission of posterior N root- somatic and visceral
block anterior N root- motor and automatic
unopposed parasympathetic
Benzodiazepines
Diazepam, midazolam, lorazepam antianxiety, amnesic and sedative bind GABA receptor Go through liver MINIMAL EFFECT on CV reversed w flumazenil
Opioids
Fentanyl, morphine, hydromorphine vind through CNS-Mu and kappa Liver Resp depression reversed w Narcan
Ketamine
dissociate the thalamus from limbic cortex
NMDA antagonist
increases BP, HR and CO
minimal effect on resp
Etomidate
GABA like,
liver
minimal on CV
cause adrenal suppression
Propfol
GABA
decrease BP
RESP depression
OK if renal/liver failure
Succinylcholine
mimics ACH, metabolized by pseudocholinesterase
quick onset
short acting
Can lead to tachycardia then bradycardia, hyperkalemia, post op myalgias
Succinylcholine indications
full stomach
difficult airway
short duration muscle relaxation
Succinylcholine contraindicators
hyperkalemia, malignant hyperthermia history
DMD
atypical pseudocholinesterase
upregulated receptors- paralysis stroke etc
Rocuronium
non depolarizing muscle relaxants, quick onset, intermediate duration
paralytic reversal
administer cholinesterase inhibitor- neostigmine, edrophonium, pyridostigmine
must co-administer an anticholinergic- glycopyrrolate, atropine
Cholinesterase inhibitors do what
increase ACH everywhere
bradycardia, GI motility, secretions, bronchoconstrictions
Sugammadex
no reblocking
Malignant hyperthermia
defect of ryanodine receptor Tachycardia increased CO2 acidosis arrhythmia renal filure
Tx Malignant hyperthermia
some hot dude better give iced fluids fast
Furosemide-increases urine output