You are a new nurse in the operating room. Your preceptor is teaching you about malignant hyperthermia. Which symptom is often the earliest sign of malignant hyperthermia?
A) Increased temperature
B) Oliguria
C) Tachycardia
D) Hypotension
Ans: C
Feedback: The initial symptoms of malignant hyperthermia are related to cardiovascular and musculoskeletal activity. Tachycardia (heart rate greater than 150 beats per mimute) is often the earliest sign. Oliguria, hypotension, and increased temperature are later signs of malignant hyperthermia.
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