Final answer:
The correct nursing intervention for a patient exhibiting signs of malignant hyperthermia after anesthesia is to administer dantrolene and prepare cooling measures to combat the effects of the condition.
Step-by-step explanation:
The patient described is showing signs of malignant hyperthermia (MH), a life-threatening condition often triggered by exposure to certain anesthesia drugs. The symptoms include a rapid increase in body temperature and severe muscle contractions. Immediate intervention is critical. The appropriate nursing intervention in this scenario is Option 1: Administer dantrolene as prescribed and prepare for cooling measures. Dantrolene acts by reducing the increased metabolic activity in muscle cells, which is crucial in treating MH. Cooling measures, such as applying ice packs or cold IV fluids, help to reduce body temperature. While Options 2, 3, and 4 may be supportive measures, they do not directly address the underlying mechanism of MH as Option 1 does.