Which of the following statements about aortic dissection are true? Select all that apply.
a) When left untreated, 33% of patients die within 24 hours.
b) Females are more commonly affected than males.
c) In aortic dissection, layers of the aortic wall split and allow blood to flow between them.
d) Aortic dissection requires surgical repair.
e) There is often a blood pressure difference between arms."
