The nurse is caring for a client with giardia lamblia and anticipates that the provider will order what drug for the treatment of this client's diarrhea?

The answer to this question would be: Nitazoxanide

Nitazoxanide is a broad antiparasitic drug that can be used to treat infection of Giardia lamblia or Cryptosporidium parvum. It also a broad antiviral can be used for viral infection.

Another drug that can be used for Giardia infection would be Metronidazole.