CNS/ neuro Flashcards
drug of choice for any seizure besides petit mal
phenytoin
ADR of phenytoin
gingival hyperplasia, bone marrow suppression
therapeutic level of phenytoin
10-20 mcg/mL
phenytoin toxicity
nystagmus, ataxia, dysarthria, and encephalopathy
nursing considerations for phenytoin administration
PO is safest route, CV collapse if IV not well diluted, do not exceed 50 mg/min, incompatible with dextrose
other common anticonvulsants
valproic acid, carbamazepine, lamotrigine
common ADR among all anticonvulsants
Steven-Johnson’s Syndrome
Symptoms of SJS
flu like symptoms and painful rash
what is the drug of choice for status epilepticus?
diazepam IV; do not give faster than 2 mg/min or 0.05 mg/kg
what can be given for acute seizures in pregnancy?
magnesium sulfate
what are neuromuscular blocking agents?
cause muscle paralysis; used in adjunct with anesthesia or maintain patients on ventilators
common depolarizing NMBA?
succinylcholine (limits Ach effect at synapse)
ADR of succinylcholine
malignant hyperthermia
treatment for malignant hyperthermia?
dantrolene
common non-depolarizing NMBA
-curonium IV meds (compete with Ach at synapse)
ADR of -curonium drugs
cholinergic crisis
common muscle relaxants
cyclobenzaprine, methocarbamol, dantrolene
migraine drug of choice
-triptan drugs
migraine prophylaxis
propanolol, TCAs, divalproex, lamotrigine, gabapentin, estrogen therapy for post-menopausal women, botox
what is Parkinson’s Disease?
imbalance between dopamine and Ach; treatment increases dopamine and decreases Ach
drug of choice for Parkinson’s?
levodopa/carbidopa
drug interaction with Parkinson’s treatment
vitamin B6 increases GI and hepatic breakdown
what is Myasthenia Gravis?
disease of reduced receptors for Ach resulting in muscle weakness
treatment for MG?
cholinesterase inhibitors
examples of MG treatment
edrophonium, pyridostigmine, neostigmine
ADRs of cholinesterase inhibitors
SLUDGEM
how to diagnose MG?
Tensilon Test; if IV edrophonium to watch for muscle strengthening within 1 minute
cholinergic crisis antidote
atropine
Alzheimer’s disease
decreased Ach
common drugs for Alzheimer’s symptoms
rivastigmine, donepezil