During the operative period, a client under general anesthesia experiences masseter muscle rigidity. The nurse-anesthetist recognizes this to be a manifestation of

a. excessive heat loss.
b. malignant hyperthermia.
c. need for increased muscle relaxant.
d. onset of anesthesia.


B
Initial manifestations of malignant hyperthermia are increased end-tidal carbon dioxide volume, masseter (jaw) muscle rigidity, cardiac dysrhythmias, and hypermetabolic state.

Nursing

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