73.下列何者為對比劑中重度過敏症狀？
(A)搔癢(itching)
(B)噁心(nausea)
(C)喉頭水腫(laryngeal swelling)
(D)溫暖潮紅感覺(warm, flushed sensation)

答案：(C) 喉頭水腫 (laryng...