A 30-year-old female patient tells you that she fainted while standing in line at the bank. She is awake on your arrival. Which one of the following secondary assessment findings should lead you to classify your patient as having a potentially serious condition?

A) Her heart rate is 90.
B) She is complaining of a severe headache.
C) She is complaining of nausea.
D) Her skin is warm and moist.

B