Phenytoin (Dilantin) Quiz
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Questions and Answers

What is the primary treatment for lithium toxicity?

  • Increasing lithium dosage
  • Administration of diuretics
  • Dialysis
  • Correction of fluid & electrolyte imbalances (correct)
  • Which lab should be monitored when administering lithium?

  • Potassium levels
  • Serum drug levels (8-12 hours after last dose and just before next dose) (correct)
  • White blood cell count
  • Blood glucose levels
  • What should patients be educated to avoid when taking lithium?

  • NSAIDs (correct)
  • Antihistamines
  • Antacids
  • Antibiotics
  • What is a common effect of long-term use of diazepam (Valium)?

    <p>CNS depression</p> Signup and view all the answers

    How does lithium toxicity manifest in the cardiovascular system?

    <p>Arrhythmias</p> Signup and view all the answers

    What is the risk of dehydration or sodium depletion in relation to lithium toxicity?

    <p>It increases the toxicity risk</p> Signup and view all the answers

    What is the pregnancy category for lithium?

    <p>D</p> Signup and view all the answers

    What is the primary use of diazepam (Valium)?

    <p>Anxiety</p> Signup and view all the answers

    What is the effect of NSAIDs on lithium levels?

    <p>NSAIDs increase lithium levels</p> Signup and view all the answers

    What is the potential effect of lithium toxicity on kidney function?

    <p>Impair ability to concentrate urine</p> Signup and view all the answers

    What is the potential CNS effect of lithium toxicity?

    <p>Ataxia</p> Signup and view all the answers

    Which drug has a narrow therapeutic index with a therapeutic level of 10-20 mcg/mL?

    <p>Phenytoin (Dilantin)</p> Signup and view all the answers

    Which drug promotes dopamine synthesis and can cause N/V, dyskinesia, and orthostatic hypotension?

    <p>Carbidopa/levodopa (Sinemet)</p> Signup and view all the answers

    Which drug is primarily used for tremors and counteracts dyskinesia of dopaminergic drugs?

    <p>Benztropine (Cogentin)</p> Signup and view all the answers

    Which antipsychotic drug is indicated for schizophrenia, bipolar disorder, and tourettes syndrome?

    <p>Risperidone (Risperdal)</p> Signup and view all the answers

    Which SSRIs drug is very good for anxiety but may worsen anxiety initially?

    <p>Fluoxetine (Prozac)</p> Signup and view all the answers

    Which bipolar treatment drug has a narrow therapeutic index and is indicated for bipolar disorder?

    <p>Lithium</p> Signup and view all the answers

    Which drug can cause CNS suppression, gingival hyperplasia, and skin rash that can result in Stevens-Johnson syndrome?

    <p>Phenytoin (Dilantin)</p> Signup and view all the answers

    Which drug interaction involves inducing hepatic metabolism of warfarin & OCPs?

    <p>Phenytoin (Dilantin)</p> Signup and view all the answers

    Which drug has incompatibilities with IV administration and can cause cardiovascular collapse with rapid administration?

    <p>Phenytoin (Dilantin)</p> Signup and view all the answers

    Which antipsychotic drug has a lower incidence of EPS but more metabolic issues and can cause somnolence, hypotension, and seizures?

    <p>Risperidone (Risperdal)</p> Signup and view all the answers

    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?

    <p>Risperidone (Risperdal)</p> Signup and view all the answers

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