My son, 10 years old, had a high grade fever 104, with vommiting for over 24 hours . Two days ago he had mental status change for about 10 minutes . He was confused, slurred speech, did not even recognize me. We immediately called 911 and lowered his body temp via shower. Within 5 minutes his mental status returned to baseline. The ER, did blood work, and urinalysis, IV fluids, but because his mental status returned did not tap him or do any further testing for encephalitis. The fever now 2 days later is fluctuating between normal and 101. Should we be requesting further testing to rule out viral encephalitis or just assume altered mental status was do to fever/ slight dehydration ?