Final answer:
The medication a nurse should expect to administer for a client with genital herpes is Acyclovir, an antiviral that helps manage the symptoms and outbreaks of the infection.
Step-by-step explanation:
The nurse should expect to administer Acyclovir for a client who has genital herpes. Acyclovir is an antiviral medication developed to manage genital herpes by keeping the herpes simplex virus in a dormant phase, which helps in reducing the signs and symptoms of the infection. Although not a cure, Acyclovir is recommended to reduce the number and duration of outbreaks and is also used as a prophylactic to prevent transmission.