The rite of passage to pass Step 1 requires that you spend 20 hours on this one question in UWORLD. After this 20 hour period, the USMLE gods say SALAAM like a myotonic seizure that you treat with Valproic Acid and allow you to pass.
Remember: MYOTONIC SEIZURES occur after 12 mo of life. INFANTILE SPASMS occur before 12 mo of life. On the 12th month of life its 50/50
This may or may not be on your examination.
Best Luck