A homeless man who had a seizure shows signs of agitation and confusion. What detail would confirm a likely diagnosis?

The detail that would likely confirm a diagnosis in this scenario is the recent history of alcohol cessation. When individuals with alcohol use disorder suddenly stop drinking, they can experience withdrawal symptoms that may include agitation, confusion, and, in more severe cases, seizures. The presence of agitation and confusion in this context suggests that the homeless man may be experiencing alcohol withdrawal, which can lead to a range of neurological and psychological symptoms, including seizures.

In contrast, a prior history of untreated schizophrenia might contribute to confusion or agitation, but it does not directly explain the seizure the man experienced. Similarly, a recent cessation of seizure medication could lead to seizures, but it would not necessarily account for the agitation and confusion in the same manner as withdrawal from alcohol might. Recent overconsumption of alcohol can lead to intoxication but would not typically cause withdrawal symptoms like agitation unless coupled with cessation. Therefore, the best choice to explain the man's symptoms is the recent alcohol cessation.