A 45 y/o F with a pmh of gastric bypass surgery presents to the ED for evaluation of copious diarrhea x 3 days.  The patient appears weak, dehydrated, and sluggish.  During your ED evaluation the patient has an acute onset tonic-colonic seizure.  The patient is given ativan and is stabilized.  Finger stick is 98mg/dL, labs are drawn, results pending.  The patient then proceeds to have another seizure.  

What electrolyte abnormality could have contributed to the patient’s epileptic event?