A patient taking lithium reports nausea, diarrhea, and a coarse tremor. Which finding most strongly suggests lithium toxicity?

A pharmacogenomic test reveals a patient is a poor CYP2D6 metabolizer. He is taking a TCA. What is the MOST likely clinical implication?

A patient abruptly discontinues long-term clonazepam use. Which withdrawal symptom is most concerning?

A patient with schizophrenia exhibits prominent positive symptoms. Which dopaminergic pathway is MOST implicated?

A 35-year-old woman presents to the ED with confusion, diaphoresis, hyperreflexia, and clonus. She recently started an MAOI while still taking sertraline. What is the MOST likely diagnosis?

A patient on buprenorphine-naloxone asks why naloxone is included. Which explanation is BEST?

A 10-year-old is started on an extended-release stimulant. Which baseline assessment is MOST appropriate prior to initiating stimulant therapy?

A 38-year-old man with MDD and hypertension is started on venlafaxine 75 mg. At follow-up, his BP is 160/100 (baseline 130/80). What is the BEST next step?

A 33-year-old with ADHD asks about misuse potential differences. Which formulation generally carries LOWER misuse risk?

A pregnant patient with schizophrenia is stable on an antipsychotic but is concerned about fetal safety. Which antipsychotic has the longest history of use and is often considered when an antipsychotic is necessary in pregnancy?