Which of the following is not a cause of fetal distress: A: Abnormality of umbilical cord B: Placenta Previa C: Maternal severe blood circulation disorder D: Anaphylaxis

The objective of preanesthetic medication is () A: reduce the patients 'anxiety B: strengthening the anesthetic effect C: Reduce the use of anaesthetic D: Prevent adverse reactions E: prevention of anaphylaxis with anesthetics

A 7-year-old boy with a previous history of bee sting allergy is brought to the emergency department after being stung by 3 bees. If this child has signs of anaphylaxis, what is the treatment of choice?() A: Diphenhydramine<br/>(an antihistamine agent) B: Ephedrine C: Epinephrine D: Methylprednisolone<br/>(a corticosteroid) E: Phenylephrine