Prior to cardioversion, lorazepam may be given because:

a. It produces an amnesia-like effect
b. It is an effective pain medication
c. It will prevent any seizure activity that may result from the procedure
d. It is an effective antiarrhythmic

a
Rationale: a. Correct.
b. Benzodiazepines are not indicated for pain.
c. Although lorazepam may be indicated for seizures, its use as a preprocedure medication in cardioversion is for it amnesia effects.
d. Lorazepam does not have antiarrhythmic effects.