A 27 year old female
has been admitted with severe gastroenteritis. She has been treated with
intravenous fluids and intravenous antiemetics.
You are called to
see the patient as the nursing staff are worried about her as she seems to be
staring at the ceiling .
On examination you
note that she has fixed upward deviation of both eyes.
In this patient
which one of the following would you administer?