Which lab monitoring is essential for patients on lithium? 

A patient overdoses on amitriptyline. Which complication is most life-threatening? 

Which drug type requires especially close therapeutic monitoring? 

A 58-year-old man with a long history of alcohol use disorder is brought to the ED by his family for confusion, unsteady gait, and abnormal eye movements. On exam, he is disoriented to time, demonstrates a wide-based ataxic gait, and has bilateral lateral rectus palsy. Vitals are stable. Labs show mild macrocytic anemia and elevated AST > ALT. The NP suspects Wernicke’s encephalopathy. Which is the most appropriate immediate intervention? 

Sodium depletion has which effect on lithium therapy? 

A patient starting an SSRI asks why improvement may take weeks. The NP explains: 

A 26-year-old woman with moderate persistent asthma uses her albuterol inhaler multiple times during an exacerbation. Shortly after, she develops tremors and palpitations. Which mechanism best explains these side effects? 

Which element is legally required on a prescription? 

A 64-year-old man with stage 2 hypertension is prescribed hydralazine. Two weeks later, he develops palpitations and resting tachycardia. Which additional therapy best counteracts this adverse hemodynamic effect? 

A patient with increased intracranial pressure is given mannitol. Which comorbidity is an absolute contraindication?