A wife telephones an adult psychiatric and mental health nur…
A wife telephones an adult psychiatric and mental health nurse practitioner to report that her 54-year-old husband has been unusually active, irritable, and unable to sleep for more than a few hours each night. The husband has been diagnosed with a major depressive disorder and has been taking fluoxetine (Prozac) for four weeks. The nurse practitioner is most concerned about the possibility that: