The neurologists would be looking for things like:
Prenatal: pregnancy induced hypertension, diabetes, toxin issues (from either oral ingestion or issues with kidneys/liver of mother not filtering the blood from baby/mother adequately)
Peri-natal: issues with blood flow to the baby (e.g. cord wrap, breech birth, delay in initial breathing), extended stress on baby (long labor, difficult labor, drugs used during labor, et cetera)
Post natal: any unusual issues just after birth to about 4 weeks - apnea, APGAR scale scores, physiological things like heart murmurs.
Those would have to come from the ob/gyn that DY used, as they are not necessarily part of Kyron's records (although there is a lot of cross-over during post-natal). DY would have to sign a release, get the release back to the Dr., the Dr. would have to pull the file from storage, copy it, and get it to Kyron's pediatrician, who would then forward it to the neurologist.
Even with fax capability, all that takes a lot of time.
Information would be needed from everyone who cared for Kyron - both parents, teachers, even babysitters. Anecdotal evidence such as drifting thoughts, staring episodes, 'day dreams', and so on. And all that would take time to get together, too.
And then, of course, EEGs. They may, or may not, show issues with brain patterns. Some seizure disorders can be easily spotted simply from patterns of brain waves, even while not having a seizure. However, most seizures (like focal/absence) cannot easily be spotted if the person is not having a seizure while hooked up. They are transient, and often, labeled as idiopathic in nature; we joke in nursing school about "idiopathic means the Dr. is an idiot and can't find the reason", although that's not true (about the Dr. being an idiot...sometimes, there really is "no" reason that is identifiable...things do sometimes "just happen" and we don't know why).
Lastly, some of the less "dramatic" seizures do not require hospitalization care; indeed, some are not even noticed. And, if noticed, it's only after a larger seizure, and then in hindsight it's identified that the patient has been having seizures for a while.
It is not at all beyond the realm of probability that the Dr. said "meh, unless it's bad, let's get all the paperwork together, and then we'll take a look at him and set him up for tests. However, if he has a "big" seizure, take him to the ER immediately. In the meantime, stop by for the (really big package) paperwork, and we'll get started."
I've seen it happen that way; as a matter of fact, I took care of a patient in peds that was having mild seizures, and even knowing what I was looking for, it was hard to spot.
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