22 Questions
What is the primary treatment for lithium toxicity?
Correction of fluid & electrolyte imbalances
Which lab should be monitored when administering lithium?
Serum drug levels (8-12 hours after last dose and just before next dose)
What should patients be educated to avoid when taking lithium?
NSAIDs
What is a common effect of long-term use of diazepam (Valium)?
CNS depression
How does lithium toxicity manifest in the cardiovascular system?
Arrhythmias
What is the risk of dehydration or sodium depletion in relation to lithium toxicity?
It increases the toxicity risk
What is the pregnancy category for lithium?
D
What is the primary use of diazepam (Valium)?
Anxiety
What is the effect of NSAIDs on lithium levels?
NSAIDs increase lithium levels
What is the potential effect of lithium toxicity on kidney function?
Impair ability to concentrate urine
What is the potential CNS effect of lithium toxicity?
Ataxia
Which drug has a narrow therapeutic index with a therapeutic level of 10-20 mcg/mL?
Phenytoin (Dilantin)
Which drug promotes dopamine synthesis and can cause N/V, dyskinesia, and orthostatic hypotension?
Carbidopa/levodopa (Sinemet)
Which drug is primarily used for tremors and counteracts dyskinesia of dopaminergic drugs?
Benztropine (Cogentin)
Which antipsychotic drug is indicated for schizophrenia, bipolar disorder, and tourettes syndrome?
Risperidone (Risperdal)
Which SSRIs drug is very good for anxiety but may worsen anxiety initially?
Fluoxetine (Prozac)
Which bipolar treatment drug has a narrow therapeutic index and is indicated for bipolar disorder?
Lithium
Which drug can cause CNS suppression, gingival hyperplasia, and skin rash that can result in Stevens-Johnson syndrome?
Phenytoin (Dilantin)
Which drug interaction involves inducing hepatic metabolism of warfarin & OCPs?
Phenytoin (Dilantin)
Which drug has incompatibilities with IV administration and can cause cardiovascular collapse with rapid administration?
Phenytoin (Dilantin)
Which antipsychotic drug has a lower incidence of EPS but more metabolic issues and can cause somnolence, hypotension, and seizures?
Risperidone (Risperdal)
Which antipsychotic drug blocks dopamine and serotonin receptors and has a black box warning for increased risk of suicide in children, adolescents, and young adults?
Risperidone (Risperdal)
Test your knowledge of the anticonvulsant drug Phenytoin (Dilantin) with this quiz. Explore its indications, side effects, therapeutic levels, and drug interactions.
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