All of the following causes increase in heart rate except________________?
Correct answer: A. Halothane
- A. Halothane
- B. Isoflurane
- C. Sevoflurane
- D. Desflurane
Explanation
Halothane tends to cause bradycardia or little change in heart rate, whereas isoflurane, sevoflurane and desflurane commonly increase heart rate through reduced vagal tone or sympathetic stimulation. Desflurane may cause a marked tachycardic response when concentration is increased rapidly.
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