please answer the following case and send me your answers 

HISTORY
A 69-year-old man experienced three episodes of generalized tonic–clonic seizures
that occurred at 3.00 or 4.00 AM, during sleep. The seizures were observed by his
wife. His mental status after each seizure was consistent with a postictal state.
He had a history of stable asymptomatic coronary artery disease, combined hyperlipidemia, treated hypothyroidism, and an increased body mass index of 31kg/m2. He
had undergone coronary artery bypass surgery at the age of 62 but had no history of
myocardial infarction. He subsequently had percutaneous coronary angioplasty three
times between the ages of 67 and 68. He had been a non-smoker for 30 years. He
rarely consumed alcoholic beverages.
His mother, father, and paternal grandfather had died from cerebrovascular accidents at the ages of 94, 79, and 80, respectively. He had no personal or family history
of seizures, but he had sustained mild head trauma without loss of consciousness 1½
years previously.
His medications were niacin (500mg three times a day orally), aminosalicylic acid
(81mg/day orally), and desiccated porcine thyroid gland (1.5 grains [90mg]/day orally).
EXAMINATION AND INVESTIGATIONS
His neurological examination was unremarkable and non-focal. The results of brain
computerized tomography and brain magnetic resonance imaging were normal. A
cardiovascular evaluation did not reveal evidence of myocardial ischemia or cardiac
arrhythmias.
He was subsequently found to have nocturnal hypoxemia caused by obstructive
sleep apnea, which was ameliorated by treatment with continuous positive airway
pressure (CPAP) during sleep.