Final answer:
When treating Neuroleptic malignant syndrome suspected from the use of chlorpromazine, the nurse should prepare Dantrolene, as it reduces muscle rigidity and mitigates hyperthermia associated with NMS.
Step-by-step explanation:
Neuroleptic malignant syndrome (NMS) is a potentially life-threatening reaction often associated with the use of antipsychotic medications, such as chlorpromazine. NMS is characterized by a hyperthermic reaction, generalized muscle rigidity, and autonomic dysregulation. When treating a patient suspected of developing NMS, it is crucial to address the hyperthermia and muscle rigidity promptly.
The medication that should be prepared in anticipation of the prescription to treat this adverse effect related to the use of chlorpromazine is Dantrolene. Dantrolene acts directly on the muscle to reduce the excessive contraction and is used to mitigate the potentially fatal hyperthermia and muscle rigidity seen in NMS.
While drugs like Diazepam, Haloperidol, or Atropine may have their own indications in the field of psychiatry and emergency medicine, they are not the primary agents used for treating NMS. Diazepam may be considered for sedation or to help with secondary symptoms related to anxiety. Haloperidol is another antipsychotic and would not be used in the context of NMS as it could exacerbate the condition. Atropine is an anticholinergic agent primarily used in the case of nerve agent poisoning and would not be appropriate for treating NMS.