【已刪除】73 下列那一種全身麻醉劑（general anesthetics）最容易造成心輸出量及血壓下降？
(A)ketamine
(B)halothane
(C)nitrous oxide
(D)isoflurane

Halothane :  cardiac depression at high levels, cardiac sensitization to catecholamines such as norepinephrine, and potent bronchial relaxation. Its lack of airway irritation made it a common inhalation induction agent in pediatric anesthesia. Due to its cardiac depressive effect, it was contraindicated in patients with cardiac failure. Halothane was also contraindicated in patients susceptible to cardiac arrhythmias, or in situations related to high catecholamine levels such as pheochromocytoma