Tracings Vol 3.1 Answer   A 15 y.o. girl was transported by EMS
to the ED. She had just experienced her second syncopal episode
in 8 days. This morning while in the bathroom at her family’s
home getting ready for school, she felt nauseous and then passed
out. When she awoke, EMS was on the scene. She had had a
previous syncopal episode 8 days prior while at school. On that
occasion she had gone into the girls’ bathroom and then woke up
lying on the floor. “Possible” seizure activity was observed.
Since that time she has had a throbbing headache involving the
entire head. Neither episode had associated chest pain,
shortness of breath, faintness or focal neurologic symptoms. Her
last menstrual period had been 3 weeks prior.  Past medical
history was significant for a congenital single kidney and
appendectomy. She was taking no medications. There was no
history of drug, alcohol or tobacco use.  Physical Exam  On exam
the patient appeared alert and generally well. BP was 116/66,
pulse 73, respirations 20, and tem