Consider the following medical report that includes the patient's historical health records. Use it to predict the disease that the patient is high likely exposed to. 

 Medical Report: history of present illness: this is an 83-year-old male with a history of hypertension, who was sitting at lunch when he suddenly fell, hit his right head on the table, and was unconsciousness for approximately three minutes. he was brought to the where he was alert, but then had a rapid deterioration in responsiveness at about 12:30 p.m. it was at that time intubated after having received 8 mg of pavulon and 2 mg of versed. a ct of the head at that time showed extensive subarachnoid blood in the basal cistern in both sylvian fissures and with extension of a significant amount of blood in the right temporal lobe and frontal lobe measuring about 4 cm to 5 cm in diameter. the patient was loaded with 1 g of dilantin and med-flighted to for further management. during transport he received 300 mg of fentanyl. past medical history: (past medical history is significant for) 1. hypertension. 2. history of nephrolithiasis. 3. gastric ulcer, status post partial gastrectomy. medications on admission: medications include zestril, norvasc, and lopressor. social history: he has smoked one and a half to two packs per day for over 50 years. he does not drink alcohol, and lives with his wife. physical examination on presentation: on presentation his temperature was 92.9, heart rate 91, respirations 14, blood pressure 154/60. he was a well-developed, well-nourished elderly man in a hard collar, intubated. the patient was completely unresponsive to voice and deep pain on the sternum in all four extremities. at the time of examination, at approximately 3 p.m., his plantar responses were moot. his pupils were 4 mm on the right and 4.5 mm on the left, and they were both unreactive. pertinent laboratory data on presentation: his white blood cell count was 20.4, hematocrit 35.2, platelets 363. pt 12.2, inr 1, ptt 30.3. chem-7 revealed a sodium of 129, potassium of 3.6, chloride of 95, bicarbonate of 18, blood urea nitrogen of 17, creatinine of 0.8, glucose of 219. magnesium 1.7, calcium 9.3, phosphate 3. albumin 3.9. hospital course: the patient was taken from the emergency room and admitted to the neurosurgery surgical intensive care unit. shortly after arrival in the intensive care unit the patient's family arrived. the extensive subarachnoid hemorrhage was felt to probably be the result of a rupture of an aneurysm or other arterial vascular formation. because of the extent of hemorrhage and the age, the grim prognosis that the patient faced even if the most aggressive measures were instituted were detailed to the patient's family. the patient's wife, son, and daughter all related the consistent picture of the patient's wishes in such a situation. that is, the patient would not wish to go ahead with such aggressive measures in the face of a very high probability of future neurologic deficits. their discretion was also in accordance with the description provided by the patient's primary care provider, . . thus, at the wishes of the family the patient was made do not resuscitate and was extubated at approximately 6 p.m. the patient was given intravenous fluids and a morphine drip to make the patient comfortable. the patient's respiratory status decompensated gradually over the next four hours until he expired and was declared dead at 10:45 p.m. the report of death was forwarded to the medical examiner who declined jurisdiction. an autopsy was denied by the patient's spouse. , m.d. dictated by: medquist36 procedure: arterial catheterization diagnoses: unspecified essential hypertension subarachnoid hemorrhage 

Answer: The patient is high likely exposed to