Circular orifices surround the heart. What is a surgical repair of one or more of these orifices?

Ambulatory surgery is done only under regional or local anesthesia

Indicate whether the statement is true or false.

You have been summoned to an apartment for a 58-year-old female who complains of hives on her chest and abdomen. When asked, she states that she has had several episodes of the hives over the past six months, but allergy testing has not been able to pinpoint a cause. Based on this information, how would you best classify the cause of the patient's reaction?

A) Iatrogenic B) Anaphylactoid C) Anaphylactic D) Idiopathic