Problem: A 12-month-old male infant male was brought into the ED via EMS. Mrs. HIJ called EMS after witnessing a tonic-clonic event. The infant was born vaginally and weighed 3700g at birth. The mother reports that the infant has appeared well, is not taking any medications and they have not recently traveled. The infant has been active for the last week. Mrs. HIJ believes the event lasted about 5 minutes but ceased before EMS arrived. Current vitals include a rectal temp of 101.1 degrees Fahrenheit. A heart rate of 130, a respiratory rate of 24, and a systolic BP of 100mmHg. Upon evaluating the infant, he appears well and is not in any respiratory distress. His mental status is back to baseline. The infant does not have any rashes or murmurs on the exam but has a bulging, erythematosus left tympanic membrane.
Q1. Based on the current information available, what diagnosis explains the event observed by Mrs. HIJ?
Q2. What was the cause of the diagnosis?
Q3. What additional lab or diagnostic test results are needed, if any?
Q4. What education is important for Mrs. HIJ to receive now?