What does an ambulatory 24 hour eeg diagnose? a neurologist ordered an exam based on my symptoms?

You can read this short article for more info: https://www.epilepsy.com/diagnosis/eeg/ambulatory. Take care and good luck to you!

Ambulatory EEGs are employed to pick up epileptic events which have not been demonstrated in the basic 45-50 minute initial study. But typically, would recommend total duration of at least 72 hrs. and sometimes 96 hrs. to be as thorough as possible.